Skip to content A B C D E F G H I J K L M N O P Q R S T U V W X Y Z dihydrofumariline An alkaloid related to fumariline present in the seeds of Fumaria officinalis dihydrofuran A five-membered, unsaturated heterocycle having four carbon atoms, one oxygen atom and one double bond; any derivative of this compound dihydrofurano A univalent radical derived from dihydrofuran dihydrofuranyl A univalent radical derived from dihydrofuran dihydrofusarubin The compound 3,6,9-trihydroxy-7-methoxy-3-methyl-1,4,4a,10a-tetrahydrobenzo[g]isochromene-5,10-dione related to fusarubin dihydrogen The divalent radical formed from two separate hydrogen atoms or ions. dihydrogenated hydrogenated with the addition of two atoms of hydrogen per molecule dihydroheterocodeine Methyldihydromorphine. dihydrohydroxyfuran A chemical derivative of furan, with two extra hydrogen atoms and a hydroxy group. dihydroimidazole The heterocycle imidazoline dihydroisocoumarin Any of a group of phenolic derivatives of isocoumarin dihydroisoxazole isoxazoline dihydrokaempferol aromadendrin dihydrokainate Any salt or ester of dihydrokainic acid dihydrolase Any hydrolase that catalyzes a reaction involving two hydrolyses dihydrolipoamide A molecule produced by the action of dihydrolipoyl dehydrogenase upon lipoamide. dihydrolipoyl Relating to dihydrolipoamide dihydromaltophilin A secondary metabolite of bacteria in the genera Streptomyces and Lysobacter. dihydrometabolite The dihydro form of a (steroidal) metabolite dihydromethysticin A particular kavalactone. dihydromorin A flavanonol and tyrosinase inhibitor found in plants of the family Moraceae and some others. dihydromorphine A particular narcotic painkiller. dihydromorphinone Hydromorphone. dihydromyricetin ampelopsin dihydronaphthalene dialin dihydroneopterin The bicyclic heterocycle 2-amino-4-hydroxy-6-(D-erythro-1,2,3-trihydroxypropyl)-7,8-dihydropteridine dihydroorotase An enzyme that converts carbamoyl aspartic acid into 4,5-dihydroorotic acid in the biosynthesis of pyrimidines. dihydroorotate A salt or ester of dihydroorotic acid. dihydrooxazine Any six-membered unsaturated heterocycle containing four carbon atoms, one oxygen and one nitrogen atoms and one double bond. dihydrophenanthrene The dihydrogenated product of phenanthrene, 9,10-dihydrophenanthrene, that is formed during oil refining dihydrophenanthridine A dihydro derivative of phenanthridine dihydroprogesterone Any of several isomers of a dihydro derivative of progesterone dihydropteridine Any dihydro derivative of pteridine, but especially 6,7-dihydropteridine which can lead to hyperphenylalaninemia dihydropteroate A pterin created from para-aminobenzoic acid by the enzyme dihydropteroate synthetase, an important intermediate in folate synthesis. dihydropyran The compound with chemical formula C₅H₈O, a cyclic ether used to protect alcohols in organic synthesis. dihydropyrazole Any dihydro derivative of a pyrazole dihydropyrazolo Any dihydro derivative of a pyrazolo group; a radical derived from a dihydropyrazole dihydropyridine A molecule based upon pyridine, the parent of a class of molecules that have been semi-saturated with two substituents replacing one double bond. dihydropyrimidinase A hydrolase enzyme, 5,6-dihydropyrimidine amidohydrolase. dihydropyrimidine A heterocycle formed from pyrimidine by the addition of two hydrogen atoms across a double bond dihydropyrone Any of a class of unsaturated six-membered heterocycles that contain one double bond, one oxygen atom and a ketone functional group. dihydropyrrole Any pyrroline. dihydroqinghaosu dihydroartemisinin dihydroquercetin The chromenone (2R,3R)-2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-2,3-dihydrochromen-4-one dihydroquinacridone A chemical compound derived from quinacridone by adding two hydrogen atoms. dihydroquinoline Any of three isomeric compounds derived from quinoline that have only one double bond in the pyridine ring; and of many derivatives of these compounds. dihydroquinone Synonym of hydroquinone. dihydroretinol retinol with two hydrogen atoms added, found in human metabolism of vitamin A dihydrorhodamine The dihydro derivative of rhodamine which is converted to the fluorescent parent compound in the presence of a reactive oxygen species dihydrosanguinarine An alkaloid found in the herb Corydalis adunca, related to sanguinarine. dihydrosepiapterin A derivative of tetrahydrobiopterin dihydrosphingolipid Any sphingolipid that lacks a C4 double bond in the sphingoid backbone dihydrosphingomyelin Any derivative of a sphingomyelin in which the double bond of the sphingosine moiety has been hydrogenated dihydrosphingosine sphinganine dihydrostilbene A type of stilbene in which the double bond that typically connects the two phenyl groups is saturated, so that the two phenyl rings are connected by a single bond between their carbon atoms. dihydrostilbenoid A natural phenol formed from the dihydrostilbene (bibenzyl) backbone. dihydrostreptomycin A particular antibiotic. dihydrostreptose A hydroxymethyl derivative of streptose, 5-deoxy-3-c-(hydroxymethyl)pentose, that forms a biochemically important complex with dTDP. dihydrosyringin A chemical compound related to syringin by the addition of two hydrogen atoms to a double bond on the propenyl side chain. dihydrotachysterol A synthetic vitamin D analogue, activated in the liver, that does not require renal hydroxylation like vitamins D₂ and D₃. dihydrotanshinone A chemical constituent of Salvia miltiorrhiza. dihydrotestosterone An androgenic metabolite of testosterone; used to treat certain breast cancers. dihydrotheelin Synonym of estradiol. dihydrothiazepine A seven-membered unsaturated heterocycle containing five carbon atoms, one nitrogen and one sulfur atom and two double bonds dihydrothiophene An unsaturated, five-membered heterocycle containing four carbon atoms, one sulfur atom and one double bond; any derivative of this compound dihydrouracil An intermediate in the catabolism of uracil. dihydrouridine A pyrimidine resulting from adding two hydrogen atoms to a uridine, making it a fully saturated pyrimidine ring with no remaining double bonds. dihydroxide Any compound containing two hydroxide groups or ions. dihydroxo Two hydroxy groups in a molecule dihydroxy Containing two hydroxy functional groups. dihydroxyacetone The compound CO(CH₂OH)₂ that has a number of industrial uses. dihydroxyacetophenone Any of six isomeric dihydroxy derivatives of acetophenone dihydroxyacid An acid with molecules that contain two hydroxy groups. dihydroxyacridine Any of several isomeric dihydroxy derivatives of acridine dihydroxyadenine An adenine derivative that accumulates in a form of urolithiasis. dihydroxyaluminium a cation containing aluminium and two water molecules as ligands dihydroxyanthraquinone Any of several isomeric organic compounds with formula C₁₄H₈O₄, formally derived from an anthraquinone by replacing two hydrogen atoms by hydroxyl groups dihydroxyanthrone Any of several isomeric dihydroxy derivatives of anthrone dihydroxybenzene benzenediol dihydroxybenzoate Any salt or ester of a dihydroxybenzoic acid dihydroxybenzoic Relating to dihydroxybenzoic acid and its derivatives dihydroxybenzyl Any dihydroxy derivative of a benzyl radical dihydroxybenzylamine Any of six isomeric dihydroxy derivatives of benzylamine dihydroxybergamottin A natural furanocoumarin found in pomelos, grapefruits, and sour oranges, and along with bergamottin believed to be responsible for a number of grapefruit–drug interactions. dihydroxybutane Any dihydroxy derivative of butane; Synonym of butanediol. dihydroxycalciferol A metabolite of vitamin D, exerting antirachitic activity in animals dihydroxychalcone Any dihydroxy derivative of a chalcone dihydroxychlorpromazine A dihydroxy derivative of chlorpromazine. dihydroxycholecalciferol Any of several isomeric dihydroxy derivatives of cholecalciferol dihydroxyeicosatrienoic Of or pertaining to dihydroxyeicosatrienoic acid dihydroxyethyl Any dihydroxy derivative of an ethyl group dihydroxyflavone Any dihydroxy derivative of a flavone dihydroxyhomotyrosine A derivative of homotyrosine with two hydroxy groups. Usually in the 3 and 4 position. dihydroxyindole Any dihydroxy derivative of an indole, but especially 5,6-dihydroxyindole that is a melanin precursor dihydroxyketone Any dihydroxy derivative of a ketone dihydroxyl A pair of hydroxyl groups in a molecule dihydroxylate To subject to dihydroxylation. dihydroxylated Modified by the addition of two hydroxyl groups dihydroxylation The introduction of two hydroxyl groups into a molecule. dihydroxynaphthalene Any of seven isomeric dihydroxy derivatives of naphthalene dihydroxynaphthoquinone Any of various derivatives of naphthoquinone through replacement of two hydrogen atoms by hydroxyl groups. dihydroxyoctadecanoate Any salt or ester of dihydroxyoctadecanoic acid dihydroxyphenyl Any dihydroxy derivative of a phenyl radical dihydroxyphenylalanine Either of two enantiomers of a derivative of the amino acid tyrosine. dihydroxyphenylisatin The laxative drug oxyphenisatine. dihydroxypteridine A chemical derivative of pteridine with two hydroxy groups, most likely lumazine. dihydroxytryptamine A dihydroxy derivative of tryptamine, but especially 5,7-dihydroxytryptamine that has some neurotoxic activity dihydroxyvitamin A physiologically active metabolite of a vitamin, with two hydroxy groups substituted in any position. dihydrozeatin The purine derivative 2-methyl-4-(7H-purin-6-ylamino)butan-1-ol that is a cytokinin diiamb A diiambus. diiambic In or relating to the diiambus meter. diiambus A double iambus; a metrical foot consisting of two iambs. diimidate A chemical compound containing two imidate groups. diimidazole Any of several isomeric bicyclic heterocycles composed of two imidazole rings directly attached, but especially N-N-diimidazole diimide The compound HN=NH diimine The compound HN=NH diindenoperylene A polycyclic aromatic hydrocarbon that is of interest as an organic semiconductor diindium Two indium atoms in a molecule. diindole A bicyclic heterocycle consisting of two fused indole rings diindolic Relating to a diindole diindolone Any dimer of indolone; any ketone derived from a diindole diindolylmethane The di-indolyl derivative of methane found in many brassicas; it has anticarcinogenic properties diiodate Any salt containing two iodate anions diiodide any iodide containing two iodine atoms in each molecule diiodinate To subject to diiodination. diiodination The addition of two atoms of iodine to a compound diiodine The normal diatomic form of iodine (I₂) diiodo Two iodo groups in a molecule diiodoacetylene An explosive iodine derivative of acetylene I-C≡C-I diiodoarene Any diiodo derivative of an arene diiodoethane Either of two diiodo derivatives of ethane, but especially 1,2-diiodoethane that is used in organic synthesis diiodohydroquinone Any diiodo derivative of hydroquinone diiodohydroxyquin Synonym of diiodohydroxyquinoline. diiodohydroxyquinoline A quinoline derivative used in the treatment of amoebiasis. diiodomethane Methylene iodide, a liquid halomethane used for the separation of minerals and for determining the specific gravity of mineral particles. diiodoquin diiodohydroxyquinoline diiodosalicylate Any salt or ester of a diiodosalicylic acid diiodothyronine Any of several isomeric diiodo derivatives of thyronine diiodotyrosine A precursor of thyroid hormone, resulting from iodization of monoiodotyrosine at the other meta- position on the phenol ring. It a modulator of thyroid peroxidase. diion Any ion having two electrical charges diiridium Two iridium atoms in a molecule. diiron Two iron atoms in a molecule. diisatogen A synthetic red crystalline nitrogenous substance which by reduction passes directly to indigo. diisobutyl Two isobutyl groups in a molecule diisocyanate Any compound containing two isocyanate anions or functional groups, but especially such an organic compound used in the preparation of polyurethane diisocyanato Two isocyanato groups in a molecule; a diisocyanate group as a substituent diisocyante Any organic compound containing two isocyanate groups; they are used in the manufacture of polyurethanes diisodecyl Two isodecyl groups in a molecule diisononyl Two isononyl groups in a molecule diisooctyl Two isooctyl groups in a molecule