ClassyFire: Listing 4825 chemical categories

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Name	ChemOnt ID	Description
D-alpha-amino acids	CHEMONTID:0004145	Alpha amino acids which have the D-configuration of the alpha-carbon atom.
D-glucosyl-N-acylsphinganines	CHEMONTID:0004304	Sphingolipids containing a sphinganine substituted at the 1-hydroxy group by a D-glucosyl group and at the 2-amino group by an acyl group.
D-glucosyl-N-acylsphingosines	CHEMONTID:0004300	Sphingolipids containing a sphingosine substituted at the 1-hydroxy group by a D-glucosyl group and at the 2-amino group by an acyl group.
Dalbergiones	CHEMONTID:0001758	Quinone derivatives containing a dalbergione moiety, which consists of a 1-4 quinone conjugated to a phenyl group at ring carbon 2.
Dalbergiquinols	CHEMONTID:0002583	Neoflavonoids with a structure based on a 3,3-diarylprop-1-ene skeleton.
Dammarane triterpenoids	CHEMONTID:0002888	Triterpenoids with a structure based on the dammarane skeleton.
Danudatine-type diterpenoid alkaloids	CHEMONTID:0003781	Alkaloid diterpenoids with a structure based on the danudatine skeleton, which is a hexacyclic compound with an additional C-20-C7 bond in the atisine skeleton.
Daphniphylline-type alkaloids	CHEMONTID:0004324	Alkaloids (or derivatives thereof) from the genus Daphniphyllum, possessing 22 carbon polycyclic fused ring systems with or without the C8 side chain. The C8 unit consists of 6-oxabicyclo[3.2.1]octane or 2,8-dioxabicyclo[3.2.1]octane.
Decamethonium compounds	CHEMONTID:0001281	Quaternary ammonium compounds containing a trimethyl-(10-trimethylammoniodecyl)ammonium moiety.
Delta amino acids and derivatives	CHEMONTID:0001879	Compounds containing a carboxylic acid group and an amino group at the C5 carbon atom.
Delta carbolines	CHEMONTID:0001915	Aromatic compounds containing a delta carboline moiety, which consists of a pyridine fused to and indole to form pyrido[3,2-b]indole.
Delta lactams	CHEMONTID:0000164	Cyclic organic compounds containing a piperidin-2-one moiety.
Delta sultams	CHEMONTID:0001885	Cyclic organic compounds containing a 1,2-thiazinane-1,1-dione moiety.
Delta sultims	CHEMONTID:0002098	Organic compounds containing a sulfonamide group in which the N=S double bond is part of a six member ring. Sultims are tautomeric forms of sultams, where N-S bond is double and not single.
Delta sultones	CHEMONTID:0002236	Organic compounds containing a delta-sultone, an intramolecular cyclic ester of hydroxy sulfonic acid, with a SO ring bond, and four ring carbon atoms.
Delta valerolactones	CHEMONTID:0001244	Cyclic organic compounds containing an oxan-2- one moiety.
Delta-1-steroids	CHEMONTID:0002976	Steroids containing a double bond between positions 1 and 2.
Delta-1,4-steroids	CHEMONTID:0002977	Steroids containing a double bond between positions 1 and 2, as well as positions 4 and 5.
Delta-11-acyl CoAs	CHEMONTID:0003235	Acyl-CoAs carrying an unsaturated delta(11)-fatty acid.
Delta-4-steroids	CHEMONTID:0002978	Steroids containing a double bond between positions 4 and 5.
Delta-5-steroids	CHEMONTID:0002979	Steroids containing a double bond between positions 5 and 6.
Delta-7-steroids	CHEMONTID:0002984	Steroids containing a double bond between positions 7 and 8.
Deoxyribo- and ribonucleoside phosphonates	CHEMONTID:0004350	N-glycosyl compound that possess both a nucleobase, usually a purine or a pyrimidine, linked to either a ribose or deoxyribose, which in turn carries a phosphonate group at the 5'-position.
Depsides and depsidones	CHEMONTID:0001645	Polycyclic compounds that is either a polyphenolic compound composed of two or more monocyclic aromatic units linked by an ester bond (depside), or a compound containing the depsidone structure (depsidone).
Depsipeptides	CHEMONTID:0001961	Natural or synthetic compounds having sequences of amino and hydroxy carboxylic acid residues (usually α-amino and α-hydroxy acids), commonly but not necessarily regularly alternating.
Desulfoglucosinolates	CHEMONTID:0004135	Derivatives of glucosinolates which arise by removal of the sulfonate moiety.
Di-rhamnolipids	CHEMONTID:0003366	Rhamnolipids containing two rhamnose rings.
Diacyl peroxides	CHEMONTID:0004579	Organooxygen compounds containing a peroxide disubstituted with acyl groups.
Diacylglycerols	CHEMONTID:0001129	Glycerides consisting of two fatty acid chains covalently bonded to a glycerol molecule through ester linkages.
Diacylglycerophosphates	CHEMONTID:0001504	Glycerophosphates in which the glycerol is esterified ta two positions with to fatty acids.
Diacylglycerophosphodiradylglycerols	CHEMONTID:0001719	Glycerophosphodiradylglycerols that carry exactly two acyl chains attached to the glycerol moiety through ester linkages.
Diacylglycerophosphomonoradylglycerols	CHEMONTID:0003845	Glycerophosphomonoradylglycerols that carry exactly two acyl chains attached to the glycerol moiety through ester linkages.
Diacylglycosylglycerophospholipids	CHEMONTID:0001727	Glycosylglycerophospholipids, where the glycerol moiety is esterified with two fatty acyl chains.
Diacylhydrazines	CHEMONTID:0004684	Carboxylic acid hydrazides with the formula RC(=O)NNC(R')=O ( R,R'=H or organyl group).
Dialkyl alkylphosphonates	CHEMONTID:0004482	Compounds containing a phosphonic acid that is diesterified with alkyl groups, and the phosphorus atom is also directly attached to an alkyl group.
Dialkyl ethers	CHEMONTID:0001167	Organic compounds containing the dialkyl ether functional group, with the formula ROR', where R and R' are alkyl groups.
Dialkyl hyponitrites	CHEMONTID:0004601	Organooxygen compounds with the general structure is RON=NOR', where R and R' are alkyl groups.
Dialkyl peroxides	CHEMONTID:0003951	Organic compounds containing a peroxide group substituted by two alkyl groups.
Dialkyl phosphates	CHEMONTID:0003459	Organic compounds containing a phosphate group that is linked to exactly two alkyl chain.
Dialkylamines	CHEMONTID:0002228	Organic compounds containing a dialkylamine group, characterized by two alkyl groups bonded to the amino nitrogen.
Dialkylarylamines	CHEMONTID:0003901	Aliphatic aromatic amines in which the amino group is linked to two aliphatic chains and one aromatic group.
Dialkylboranes	CHEMONTID:0004574	Organoboron compounds where the boron atom is substituted by only two alkyl groups.
Dialkyldisulfides	CHEMONTID:0004089	Organic compounds containing a disulfide group R-SS-R' where R and R' are both alkyl groups.
Dialkylglycerol-3-phosphocholines	CHEMONTID:0001289	Glycerophosphocholines in which the glycerol moiety is bonded to two aliphatic (saturated or unsaturated) chains through ether linkages.
Dialkylglycerolphosphoglycerols	CHEMONTID:0003841	Glycerophosphoglycerols that carry exactly two alkyl chain attached to the glycerol moiety through ether linkages.
Dialkylglycerols	CHEMONTID:0003810	Glycerides consisting of two fatty acid chains covalently bonded to a glycerol molecule through ether linkages.
Dialkylglycerophosphates	CHEMONTID:0001288	Glycerophosphates in which the glycerol moiety is bonded to two aliphatic (saturated or unsaturated) chains through ether linkages.
Dialkylglycerophosphoethanolamines	CHEMONTID:0003831	Glycerophosphoglycerols that carry exactly two chains attached to the glycerol moiety through ether linkages.
Dialkylglycerophosphoglycerophosphates	CHEMONTID:0002343	Glycerophosphoglycerophosphates that carry two aliphatic chains (alkyl group) attached to the glycerol moiety.
Dialkylglycerophosphoinositols	CHEMONTID:0003850	Glycerophosphoinositols that contain exactly two fatty acyl chains attached to the glycerol moiety, one through ether linkages at the O1- and O2-positions.
Dialkylglycerophosphoserines	CHEMONTID:0003836	Glycerophosphoserines that contain exactly two fatty acyl chains attached to the glycerol moiety through ether linkages.
Dialkylmagnesiums	CHEMONTID:0004597	Organomagnesium compounds where the magnesium atom is substituted with two alkyl groups. They have the general formula RMgR', where R and R' are alkyl groups.
Dialkylmonoacylglycerols	CHEMONTID:0003817	Triradylglycerols that carry exactly two acyl chains attached to the glycerol moiety through an ether linkage, and one 1Z-alkenyl chain attached through an ester linkage.
Dialkylsilanediols	CHEMONTID:0003271	Organosilicon compounds with the general formula HO[Si](R)(R')OH where R and R' are alkyl groups.
Dialkylsilanols	CHEMONTID:0003267	Organosilicon compounds with the general formula HO[Si](R)(R')H where R and R' are alkyl groups.
Dialkylthioethers	CHEMONTID:0003862	Organosulfur compounds containing a thioether group that is substituted by two alkyl groups.
Dialkyltin dicarboxylates	CHEMONTID:0004085	Organotin compounds containing a tin atom linked to 2 alkyl chain and to acyl groups.
Dialkyltin salts	CHEMONTID:0004090	Salts of dialkyltin compounds.
Dialkyltins	CHEMONTID:0004071	Triorganotin compounds where the tin atom is linked to exactly two alkyl groups.
Dialkylzincs	CHEMONTID:0004593	Organozinc compounds containing a zinc atom that is disubstituted with alkyl groups. They have the general formula RZnR', where R and R' are alkyl groups.
Diaminotoluenes	CHEMONTID:0003965	Organic aromatic compounds containing a benzene that carries a single methyl group exactly 2 amino groups.
Diarsolanes	CHEMONTID:0003985	Organic compounds containing a diarsolane ring, which is a saturated five-membered ring made up of three carbon and two arsenic atoms.
Diarylamines	CHEMONTID:0002455	Secondary amines where the two hydrocarbyl substituents of the amine group are aryl groups.
Diarylethers	CHEMONTID:0002463	Organic compounds containing the dialkyl ether functional group, with the formula ROR', where R and R' are aryl groups.
Diarylheptanoids	CHEMONTID:0002650	Phenylpropanoids with a structure containing two aromatic rings joined by a seven carbons (a 1,7-diphenylheptane skeleton) and may have various substituents.
Diarylthioethers	CHEMONTID:0003864	Organosulfur compounds containing a thioether group that is substituted by two aryl groups.
Diazanaphthalenes	CHEMONTID:0004788	Aromatic heterocyclic chemical compounds containing a naphthalene derivative, where two carbon atoms are replaced by nitrogen atoms. They are subdivided in benzodiazines and naphthyridines.
Diazaphospholanes	CHEMONTID:0002061	Cyclic organic compounds containing a five-member aliphatic single-bonded ring, with a phosphorine atom and two nitrogen atoms at the ring positions 1, 2, and 3 respectively.
Diazaphospholes	CHEMONTID:0002063	Cyclic organic compounds containing a five-member aliphatic unsaturated ring with two double bonds, and with a phosphorine atom, two nitrogen atoms at the ring positions 1, 2, and 3 respectively.
Diazaphospholines	CHEMONTID:0002062	Cyclic organic compounds containing a five-member aliphatic unsaturated ring with only double bond, and with a phosphorine atom, two nitrogen atoms at the ring positions 1, 2, and 3 respectively.
Diazaspirononane derivatives	CHEMONTID:0000191	Organic heterocyclic compounds that contain a nine-membered saturated bicyclic moiety, consisting of two aliphatic saturated rings in a spiro-configuration, each of which contain a nitrogen atom. The bicyclic moiety is made up of two nitrogen and seven carbon atoms.
Diazepanes	CHEMONTID:0002920	Compounds containing a diazepane rings, which is a saturated seven-membered ring with 2 nitrogen atoms and five carbon atoms.
Diazepines	CHEMONTID:0000071	Organic compounds containing a seven-member heterocyclic moiety with five nitrogen atoms, and two nitrogen atoms at positions 1 and 2 (1,2-Diazepines), 1 and 3 (1,3-Diazepines), or 1 and 4 (1,4-Diazepines).
Diazetidines	CHEMONTID:0002546	Organic compounds containing the diazetidine ring, a saturated four-membered ring with two nitrogen atoms and 2 carbon atoms.
Diazinanes	CHEMONTID:0002389	Organic compounds containing diazinane, a six-membered saturated heterocycle containing four carbon atoms and two nitrogen atoms.
Diazines	CHEMONTID:0001346	Organic compounds containing a five-member heterocyclic compound with five nitrogen atoms, and two nitrogen atoms at positions 1 and 2 (Pyridazines), 1 and 3 (Pyrimidines), or 1 and 4 (Pyrazines).
Diazirines	CHEMONTID:0002691	Heterocyclic compounds containing a diazirine ring, which is a three-membered unsaturated cycle with one carbon atom, and two nitrogen atoms joined by a double bond.
Diazo compounds	CHEMONTID:0003688	Organic compounds having the divalent diazo group, =N+=N-, attached to a carbon atom.
Diazoethers	CHEMONTID:0004586	Organooxygen compounds with the general formula RN=NOR' (R=H or organyl, R'=organyl).
Diazonium perchlorates	CHEMONTID:0004602	Organic perchlorate compounds with the general structure RN+2 ClO4-, where R is an organyl group.
Diazonium sulfates	CHEMONTID:0004604	Organic mixtures of diazonium salts and sulfate salts. They have the general structure (RN+2 )2(SO4)2- , R'N+2 H(SO4)-, where R and R' are organyl groups.
Diazonium tetrahaloborates	CHEMONTID:0004605	Organic compounds containing a tetrahaloborate ion and a diazonium ion.
Dibenzazecins	CHEMONTID:0001008	Polycyclic aromatic compounds containing two benzene rings joined by an azecin ring.
Dibenzazepines	CHEMONTID:0000320	Compounds with two benzene rings connected by an azepine ring. Azepine is an unsaturated seven-member heterocycle with one nitrogen atom replacing a carbon atom.
Dibenzo-p-dioxins	CHEMONTID:0001381	Compounds containing a dibenzo-p-dioxin moiety, which consists of two benzene connected by a para-dioxin ring.
Dibenzocycloheptenes	CHEMONTID:0000019	Compounds containing a dibenzocycloheptene moiety, which consists of two benzene rings connected by a cycloheptene ring.
Dibenzocyclooctadiene lignans	CHEMONTID:0001623	Compounds containing a dibenzocyclooctadiene moiety, which consists of two hydroxylated benzene connected by a cycloheptene ring.
Dibenzodiazepines	CHEMONTID:0000072	Compounds containing a dibenzodiazepine moiety, which consists of two benzene connected by diazepine ring.
Dibenzofurans	CHEMONTID:0000015	Compounds containing a dibenzofuran moiety, which consists of two benzene rings fused to a central furan ring.
Dibenzopyrans	CHEMONTID:0002817	Organic heterocyclic compounds with a structure containing a dibenzopyran moiety, made up of two benzene rings fused to a central pyran ring.
Dibenzothiazepines	CHEMONTID:0000055	Compounds containing a dibenzothiazepine moiety, which consists of two benzene connected by a thiazepine ring.
Dibenzothiepins	CHEMONTID:0000232	Compounds containing a dibenzothiepin moiety, which consists of two benzene connected by a thiepine ring.
Dibenzothiophene-5-oxides	CHEMONTID:0004635	Organic aromatic compounds containing a dibenzothiophene disubstituted at the 5-position with a dioxide group.
Dibenzothiophene-5,5-dioxides	CHEMONTID:0004636	Organic aromatic compounds containing a dibenzothiophene disubstituted at the 5-position with two dioxide groups.
Dibenzothiophenes	CHEMONTID:0002818	Organic heterocyclic compounds with a structure containing a dibenzothiophene moiety, made up of two benzene rings fused to a central thiophene ring.
Dibenzoxazepines	CHEMONTID:0000150	Compounds containing a dibenzoxazepine moiety, which consists of two benzene connected by an oxazepine ring.
Dibenzoxepines	CHEMONTID:0001988	Compounds containing a dibenzoxepine moiety, which consists of two benzene connected by an oxazepine ring.
Dibenzylbutane lignans	CHEMONTID:0001969	Lignan compounds containing a 2,3-dibenzylbutane moiety.
Dibenzylbutanediol lignans	CHEMONTID:0001624	Lignan compounds containing a 2,3-dibenzylbutane-1,4-diol moiety.
Dibenzylbutyrolactols	CHEMONTID:0001968	Lignan compounds containing a 3,4-dibenzyloxolan-2-ol moiety.
Dibenzylbutyrolactone lignans	CHEMONTID:0001613	Lignan compounds containing a 3,4-dibenzyloxolan-2-one moiety.
Dicarbonic acids and derivatives	CHEMONTID:0000468	Compounds containing the divalent [-O-(C=O)-O-(C=O)-O-] or C2O52 functional group, which consists of two carbonate groups sharing an oxygen atom.
Dicarboxdiimides	CHEMONTID:0002483	Hydrazine derivatives in which each of the two nitrogen atoms is the central atom of a dicarboximide group.
Dicarboximides	CHEMONTID:0003033	Carboxylic acid amides in which the two acyl groups linked to the central nitrogen atoms are carboacyl groups.
Dicarboxylic acids and derivatives	CHEMONTID:0000346	Organic compounds containing exactly two carboxylic acid groups.
Dichlorobenzenes	CHEMONTID:0002564	Compounds containing a benzene with exactly two chlorine atoms attached to it.
Dichlorobenzoic acids	CHEMONTID:0002611	Benzoic acids having two chlorine atoms attached to the carboxylated benzene ring.
Dichlorophenyl dicarboximides	CHEMONTID:0004728	Aromatic compounds containing a dichlorobenzene group, which is N-linked to a dicarboximide group.
Difluoroamino compounds	CHEMONTID:0004606	Organonitrogen compounds containing an amine group substituted with two fluorine atoms, and an organyl group.
Difurocoumarins	CHEMONTID:0001536	Polycyclic aromatic compounds containing difurocoumarin moiety consisting of a system of two fused furan rings, which is linked to the benzene ring of a coumarin.
Difurocoumarocyclopentenones	CHEMONTID:0001532	Polycyclic aromatic compounds containing a cyclopenten-2-one ring fused to the coumarin moiety of the difurocoumarin skeleton.
Difurocoumarolactones	CHEMONTID:0001533	Polycyclic aromatic compounds containing a delta-valerolactone ring fused to the coumarin moiety of the difurocoumarin skeleton.
Dihaloarsines	CHEMONTID:0004282	Organoarsenic compounds with the general formula R[As](X)X, where R = Organyl group, and X = halogen atom.
Dihydrobenzofuran and benzofuran lignans	CHEMONTID:0003418	Neolignans in which the two C6-C3 units are linked together by a bond other than Cbeta-Cbeta'. They usually consist of a 1-benzofuran or 2,3-dihydro-1-benzofuran, which is substituted a the 2-, 3-, and 5-positions with a phenyl group, a methyl group, and a propyl group, respectively.
Dihydrobenzophenanthridine alkaloids	CHEMONTID:0002667	Alkaloids containing a dihydrobenzophenanthridine skeleton, which is a tetracyclic compound containing a benzene fused to a dihydrophenanthridine moiety.
Dihydrofolic acids and derivatives	CHEMONTID:0002619	Heterocyclic compounds based on the 5,6-dihydropteroic acid/7,8-dihydropteroic acid skeleton conjugated with one or more L-glutamic acid units (or derivative thereof).
Dihydrofuranoquinolines	CHEMONTID:0001780	Organic heterocyclic compounds with a structure based on the dihydrofuranoquinoline skeleton.
Dihydrofurans	CHEMONTID:0001983	Compounds containing a dihydrofuran moiety, which is a furan derivative with only one double bond.
Dihydroisoquinolines	CHEMONTID:0002958	Isoquinoline derivatives where exactly two carbon atoms joined by an aromatic bond are linked with a hydrogen atom each, resulting in a CC single bond.
Dihydropteroic acids and derivatives	CHEMONTID:0003041	Dihydrogenated pteroic acids or derivatives thereof.
Dihydropyranones	CHEMONTID:0001211	Compounds containing a hydrogenated pyran ring which bears a ketone, and contains one double bond.
Dihydropyridinecarboxylic acids and derivatives	CHEMONTID:0001562	Compounds containing a dihydropyridine moiety bearing a carboxylic acid group.
Dihydropyridines	CHEMONTID:0000367	Compounds containing a dihydropyridine moiety, which is a semi-saturated pyridine derivative with two double bonds.
Dihydrothiophenes	CHEMONTID:0002091	Compounds containing a dihydrothiophene moiety, which is a thiophene derivative with only one double bond.
Dihydroxy bile acids, alcohols and derivatives	CHEMONTID:0000516	Compounds containing or derived from a bile acid or alcohol, and which bears exactly two carboxylic acid groups.
Dihydroxyphosphanes	CHEMONTID:0002540	Organic compounds with the general formula RP(OH)OH.
Diketopiperazines	CHEMONTID:0002356	Organic compounds containing a piperazine ring in which the two nitrogen atoms are part of amide linkages.
Dimethoxybenzenes	CHEMONTID:0004111	Organic aromatic compounds containing a monocyclic benzene moiety carrying exactly two methoxy groups.
Dimethoxybenzyl-N-methylpiperazines	CHEMONTID:0003663	Organic aromatic compounds containing a piperazine ring that carries a methyl group on one amine group and a dimethoxybenzyl moiety on the other amine group.
Dimethylphosphatidylethanolamines	CHEMONTID:0003403	Lipids with a structure containing a glycerol moiety linked at its terminal C3 atom to a N,N-dimethylphosphoethanolamine group, and at its C1 and C2 terminal atoms by an acyl group.
Dinaphtho[2,1-b;2',3'-d]furans	CHEMONTID:0003537	Organic aromatic compounds that contain two naphthalene moieties fused to each other through a furan ring to form a dinaphtho[2,1-b;2',3'-d]furan skeleton.
Dinaphthofurans	CHEMONTID:0003536	Organic aromatic compounds that contain two naphthalene moieties fused to each other through a furan ring. Furan is a 5 membered- ring aromatic ring with four carbon and one oxygen atoms. Naphthalene is a polycyclic aromatic hydrocarbon made up of two fused benzene rings.
Dinitroanilines	CHEMONTID:0003968	Organic compounds containing an aniline moiety, which is substituted at 2 positions by a nitro group.
Dinitrophenols	CHEMONTID:0004505	Organic aromatic compounds containing a benzene that carries a single phenol group and exactly two nitro groups.
Dinitrotoluenes	CHEMONTID:0003969	Organic aromatic compounds containing a benzene that carries a single methyl group and exactly two nitro groups.
Diorganotrihaloarsoranes	CHEMONTID:0004244	Organoarsenic compounds containing a pentavalent arsenic compound that is by two organic groups and three halogen atoms.
Dioxaborolanes	CHEMONTID:0002225	Compounds containing a five-member saturated aliphatic heterocycle made up of two oxygen atoms, a boron atom, and three carbon atoms.
Dioxaboroles	CHEMONTID:0002226	Compounds containing a five-member unsaturated aliphatic heterocycle made up of two oxygen atoms, a boron atom, and three carbon atoms.
Dioxanes	CHEMONTID:0000368	Compounds containing a dioxane ring, which is a six-membered saturated ring of two oxygen atoms and four carbon atoms. The dioxanes are divided in 1,2-dioxanes, 1,3-dioxanes, and 1,4-dioxanes.
Dioxaphospholanes	CHEMONTID:0000822	Cyclic organic compounds containing a five-member aliphatic single-bonded ring, with a phosphorine atom and two oxygen atoms at the ring positions 1, 2, and 3 respectively.
Dioxathiolanes	CHEMONTID:0002486	Organic heterocyclic compounds containing a dioxathiolane, with a structure consisting of a five-membered saturated ring with one sulfur atom, two oxygen atoms, and two carbon atoms.
Dioxepanes	CHEMONTID:0002943	Compounds containing a dioxepane ring, which is a seven-membered aliphatic saturated ring with two oxygen atoms and five carbon atoms.
Dioxepines	CHEMONTID:0002939	Compounds containing a dioxepane ring, which is a seven-membered aliphatic unsaturated ring with two oxygen atoms and five carbon atoms.
Dioxetanes	CHEMONTID:0000412	Compounds containing a dioxetane ring, which is a four-member ring of two oxygen atoms and two carbon atoms. The dioxetanes are divided in 1,2-dioxetanes, and 1,3-dioxetanes.
Dioxins	CHEMONTID:0001384	Compounds containing a dioxin ring, which is a six-membered unsaturated ring of two oxygen atoms and four carbon atoms.
Dioxiranes	CHEMONTID:0002109	Compounds containing a three-membered cyclic with two oxygen atoms and a carbon atom.
Dioxoisoquinoline-4-carboxanilides	CHEMONTID:0004691	1,3-isoquinolinediones that are substituted at the ring 4-position with a carboxanilide.
Dioxolanes	CHEMONTID:0000105	Compounds containing a dioxolane ring, which is a five-membered saturated ring of two oxygen atoms and three carbon atoms. The dioxolanes are divided in 1,2-dioxolanes, and 1,3-dioxolanes.
Dioxoles	CHEMONTID:0000193	Compounds containing a dioxole ring, which is a five-membered unsaturated ring of two oxygen atoms and three carbon atoms. The dioxoles are divided in meta-dioxoles, and ortho-dioxoles.
Dioxolopyrans	CHEMONTID:0001985	Compounds containing a dioxolopyran moiety, which consists of a dioxole ring fused to a pyran ring.
Dioxopiperazines	CHEMONTID:0001731	Compounds containing a piperazine ring bearing two ketone groups. These include the alkaloid class of naturally occurring 2,5-dioxopiperazines.
Dipeptides	CHEMONTID:0004830	Organic compounds containing a sequence of exactly two alpha-amino acids joined by a peptide bond.
Diphenhydramines	CHEMONTID:0000042	Cyclic aromatic compounds containing a diphenhydramine moiety, which consists of a diphenylmethoxyl group like to an ethyldimethylamine to form [2-(diphenylmethoxy)ethyl]dimethylamine.
Diphenylacetonitriles	CHEMONTID:0001527	Cyclic aromatic compounds containing a diphenylacetonitrile moiety, which consists of a diphenylmethane linked to and acetonitrile to form 2,2-diphenylacetonitrile.
Diphenylethers	CHEMONTID:0004155	Aromatic compounds containing two benzene rings linked to each other through an ether group.
Diphenylfurans	CHEMONTID:0003491	Organic heterocyclic compounds that contain a furan ring substituted with a phenyl group at exactly two positions.
Diphenylmethanes	CHEMONTID:0000369	Compounds containing a diphenylmethane moiety, which consists of a methane wherein two hydrogen atoms are replaced by two phenyl groups.
Diphenylpyrroles	CHEMONTID:0002695	Aromatic heterocyclic compounds with a structure based on a pyrrole ring linked to exactly two phenyl groups.
Diphenyltetrazoles and derivatives	CHEMONTID:0001217	Organic compounds containing a dioxane ring, which is an aliphatic six-member ring with two oxygen atoms.
Diphosphenes	CHEMONTID:0002489	Organophosphorus compounds with the general formula RP=PR'(R,R'= alkyl, aryl).
Dipyrido[1,4]diazepines	CHEMONTID:0004346	Aromatic heteropolycyclic compounds containing two pyridines rings bound to a 1,4-diazepine ring.
Dipyrrins	CHEMONTID:0002028	Compounds containing two pyrrole rings fused via a methine (-C=) group.
Diradylglycerols	CHEMONTID:0003809	Glycerolipids that carry exactly two acyl chains attached to the glycerol moiety.
Disaccharide phosphates	CHEMONTID:0001599	Disaccharides carrying one or more phosphate group on a sugar unit.
Disaccharide sulfates	CHEMONTID:0003307	Disaccharides carrying one or more sulfate group on a sugar unit.
Disaccharides	CHEMONTID:0001542	Compounds containing two carbohydrate moieties linked to each to each other through a glycosidic bond, no set of three or more glycosidically linked carbohydrate units.
Diselenides	CHEMONTID:0002472	Organoselenium compounds with the general structure R-Se-Se-R' (R,R' = H or organic moiety).
Diselenins	CHEMONTID:0003691	Organic heterocyclic compounds containing a diselenin ring. Diselenin is a six-membered heterocyclic with for carbon atoms and two selenium atoms.
Disiloxanes	CHEMONTID:0003205	Organosilicon compounds with the general formula H[Si](R)(R')O[Si](H)(R'')R''' (R= organyl, R'-R'''= H or organyl).
Disubstituted amine oxides and derivatives	CHEMONTID:0003069	Amine oxides where the N atom is disubstituted with two organic groups.
Ditellurides	CHEMONTID:0002478	Organotellurium compounds with the general structure R-Te-Te-R' (R,R' = H or organic moiety).
Diterpene glycosides	CHEMONTID:0001755	Diterpenoids in which an isoprene unit is glycosylated.
Diterpene lactones	CHEMONTID:0001538	Diterpenoids containing a lactone moiety.
Diterpenoids	CHEMONTID:0001551	Terpene compounds formed by four isoprene units.
Dithianes	CHEMONTID:0001863	Compounds containing a dithiane moiety, which is composed of a cyclohexane core structure wherein two methylene units are replaced by sulfur centres.
Dithiazinanes	CHEMONTID:0004198	Cyclic compounds that contain a dithiazinane ring, which is a saturated heterocycle that consisting of one nitrogen atom, two sulfur atoms, and 2 carbon atoms.
Dithiazoles	CHEMONTID:0000148	Compounds containing a dithiazole moiety, which consists of an unsaturated five-member ring containing two carbon atoms, one nitrogen atom, and two sulfur atoms.
Dithiazolethiones	CHEMONTID:0001128	Compounds containing a dithiazole bearing a thioketone group.
Dithietanes	CHEMONTID:0000378	Compounds comprising a dithietane moiety, which is four-member saturated ring containing two divalent sulfur atoms and two carbon atoms.
Dithiins	CHEMONTID:0002055	Compounds comprising a dithiin ring, which is an unsaturated six-member heterocycle containing four carbon atoms, two sulfur atoms and two double bonds.
Dithioacetals	CHEMONTID:0002132	Compounds containing a dithioacetal functional group with the general structure R2C(SR')2.
Dithiocarbamate salts	CHEMONTID:0004429	Salts of dithiocarbamic acids.
Dithiocarbamic acid esters	CHEMONTID:0003936	Organosulfur compounds with the general formula R3SC(=S)N(R1)R2; R1-R2 = H or organyl group, R3 = organyl.
Dithiocarbamic acids	CHEMONTID:0003935	Organosulfur compounds with the general formula HSC(=S)N(R1)R2; R1-R2 = H or organyl group.
Dithiocarbamic acids and derivatives	CHEMONTID:0003934	Organosulfur compounds with the general formula SC(=S)N(R1)R2; R1-R2 = H or organyl group.
Dithiocarboxylic acid amides	CHEMONTID:0003438	Organic compounds with the general formula RC(=S)SN(R')R'', (R = organyl group; R', R'' = H, organyl group.
Dithiocarboxylic acid esters	CHEMONTID:0003439	Organic compounds with the general formula RC(=S)SR', where R and R' are organyl groups.
Dithiocarboxylic acids	CHEMONTID:0003437	Organic compounds with the general formula RC(=S)SH.
Dithiocarboxylic acids and derivatives	CHEMONTID:0003436	Organic compounds containing a dithiocarboxylic acid with the general formula RC(=S)SR' (R = organyl group, R' = H or organyl group).
Dithiohemiacetals	CHEMONTID:0002026	Compounds containing a dithiohemiacetal group with the general formula R2C(SR')SH, where R' != H.
Dithioketals	CHEMONTID:0002133	Compounds containing a dithioketal functional group with the general structure R2C(SR')2 with R, R' = organyl.
Dithiolanecarboxylic acids	CHEMONTID:0003378	Organic heterocyclic compounds containing a dithiolane ring that bears one or more carboxylic acids.
Dithiolanes	CHEMONTID:0000484	Compounds containing a dithiolane ring, which consists of a sulfur heterocycle derived from cyclopentane by replacing two CH2 groups with thioether groups.
Dithioles	CHEMONTID:0002090	Compounds comprising a dithiole ring, which is an unsaturated five-member heterocycle containing three carbon atoms, two sulfur atoms and a double bond.
Dithiophosphate O-esters	CHEMONTID:0004164	O-ester derivatives of dithiophosphates, with the general structure RSP(O)(O)=S (R = organyl group).
Dithiophosphate S-esters	CHEMONTID:0003387	S-ester derivatives of dithiophosphates, with the general structure RSP(O)(O)=S (R = organyl group).
Dithiophosphate S,S-diesters	CHEMONTID:0004793	Organic compound containing a S,S-diester derivative of dithiophosphoric acid.
Dithiosulfonic O-acids	CHEMONTID:0002543	Organic acids with the general formula RS(=S)(=S)OH.
Dithiosulfonic S-acids	CHEMONTID:0002544	Organic acids with the general formula RS(=O)(=S)SH.
Dithioxanthines	CHEMONTID:0001999	Compounds containing a dithioxanthine moiety, a xanthine derivative obtained by replacing the two ketone groups by two thioketone groups.
Dolabellane and neodolabellane diterpenoids	CHEMONTID:0001760	Diterpenoids with a structure based on the dolabellane skeleton (3a,6,10-trimethyl-1-(propan-2-yl)-cyclopenta[11]annulene) or the neodolabellane skeleton.
Dolichols	CHEMONTID:0003854	A group of long-chain mostly unsaturated organic compounds that are made up of varying numbers of isoprene units terminating in an alpha-saturated isoprenoid group, containing an alcohol functional group. The three isoprene units at the distal end are trans-linked.
Dolichyl diphosphates	CHEMONTID:0003856	Polyprenyl compounds consisting of a diphosphate group substituted by a dolichyl moiety.
Dolichyl monophosphates	CHEMONTID:0003855	Polyprenyl compounds consisting of a monophosphate group substituted by a dolichyl moiety.