diacetylene
A highly unsaturated hydrocarbon, HC≡C-C≡CH, the simplest polyyne
Any of its derivatives, R₂C≡C-C≡CR₂, used in the manufacture of polydiacetylene

diacetylenes
plural of diacetylene

diacid
Any dibasic acid

diacids
plural of diacid

diacridine
Any compound that contains two acridine moieties

diacridines
plural of diacridine

diacrylate
Any compound having two acrylate groups

diacrylates
plural of diacrylate

diacylamine
any compound having two acyl groups attached to an ammonia of primary amine residue; a secondary amide or imide

diacylamines
plural of diacylamine

diacylamino
Any univalent radical derived from a diacylamine

diacylaminos
plural of diacylamino

diacylglyceryl
A univalent radical derived from a diacylglycerol that is the basis of most phospholipids

diacylglyceryls
plural of diacylglyceryl

diadenylate
Any compound that has two adenylate groups

diadenylates
plural of diadenylate

diadinoxanthin
A pigment found in phytoplankton, with chemical formula C₄₀H₅₄O₃.

dialane
The aluminium hydride Al₂H₆ that is a dimer of alane found only at low temperatures

dialdehyde
Any compound containing two aldehyde groups

dialdehydes
plural of dialdehyde

dialdose
A monosaccharide containing two aldehyde groups.

dialdoses
plural of dialdose

dialkoxide
Any compound that has two alkoxide groups

dialkoxides
plural of dialkoxide

dialkylamine
Any secondary amine formed from two alkyl groups

dialkylamines
plural of dialkylamine

dialkylammonium
Any univalent cation, of general formula R₂NH₂⁺, formed by protonation of a secondary amine

dialkylammoniums
plural of dialkylammonium

dialkyllead
Any lead cation that has two alkyl substituents

dialkylzinc
Any organometallic compound of zinc containing two alkyl groups

dialkylzincs
plural of dialkylzinc

dialurate
A salt or ester of dialuric acid.

dialurates
plural of dialurate

diamid
Archaic form of diamide.

diamide
Any compound having two amide groups
hydrazine

diamides
plural of diamide

diamidide
any of a class of compounds formally derived from acid anhydrides by replacement of =O with =NR, and -O- with -NR-

diamidides
plural of diamidide

diamidine
Any organic compound having two amidine groups, such as pentamidine

diamidines
plural of diamidine

diamidite
Any amidite in which two -O- linkages are replaced by -N< (amino) groups

diamids
plural of diamid

diamin
Archaic form of diamine.

diamine
Any compound containing two amino functional groups.

diamines
plural of diamine

diaminoglucose
Any diamino derivative of glucose, but especially 2,6-diaminoglucose that has some antibacterial action

diaminoglucoses
plural of diaminoglucose

diaminophenol
Any of several isomeric diamino derivatives of phenol; they are used in organic synthesis, and in hair dying applications.

diaminophenols
plural of diaminophenol

diaminopimelate
Any salt or ester of diaminopimelic acid

diaminopimelates
plural of diaminopimelate

diamins
plural of diamin

diammoniate
Any compound containing two molecules of ammonia attached as ligands

diammoniates
plural of diammoniate

diammonio
Containing two ammonio groups (-NH₃⁺).

diamylene
A liquid hydrocarbon, C₁₀H₂₀, of the ethylene series, regarded as a polymeric form of amylene.

diamylenes
plural of diamylene

dianhydride
Any compound containing two anhydride groups
Any cyclic product of the condensation of two monosaccharide molecules with the elimination of two molecules of water

dianhydrides
plural of dianhydride

dianion
Any anion carrying two negative charges

dianions
plural of dianion

dianthramide
Any of a class of aromatic amide found in plants of the genus Dianthus.

dianthramides
plural of dianthramide

dianthraquinone
The bianthraquinone that is linked via the two central rings

diarginate
Any compound containing two arginate groups

diarsane
The arsenic hydride As₂H₄, having a chain of two arsenic atoms

diarsanes
plural of diarsane

diarsenate
Any chemical compound containing two arsenate groups in each molecule or unit cell.

diarsenates
plural of diarsenate

diarsenite
Any chemical compound containing two arsenite groups in each molecule or unit cell.

diarsenites
plural of diarsenite

diarsonate
Any compound that has two arsonate groups or anions

diarsonates
plural of diarsonate

diarylamide
An amide in which the nitrogen has two hydrogen atoms substituted by aryl groups.

diarylamides
plural of diarylamide

diarylamine
A secondary amine having two aryl substituents

diarylamines
plural of diarylamine

diarylmethyl
A univalent radical derived from a diarylmethane

diarylmethyls
plural of diarylmethyl

diatoxanthin
A type of xanthophyll found in phytoplankton and diatoms.

diazaborolane
A five-membered saturated heterocycle having two carbon atoms, two nitrogen atoms and a boron atom; any derivative of this compound

diazaborolanes
plural of diazaborolane

diazaheterocycle
A heterocycle that contains a pair of double bonded nitrogen atoms

diazaheterocycles
plural of diazaheterocycle

diazaphospholane
A saturated, five-membered heterocycle having two carbon atoms, two nitrogen atoms and one phosphorus atom; any derivative of this compound

diazaphospholanes
plural of diazaphospholane

diazene
The compound HN=NH
Any azo compound derived from this simple compound

diazenes
plural of diazene

diazeniumdiolate
The diazene oxide H-N=NO₂
Any derivative of this compound R-N=NO₂

diazeniumdiolates
plural of diazeniumdiolate

diazenyl
Any univalent radical of the form R-N=N-

diazenyls
plural of diazenyl

diazepine
A seven-membered unsaturated heterocycle having two nitrogen atoms and three double bonds; any derivative of this compound

diazepines
plural of diazepine

diazide
Any compound containing two azide groupe

diazides
plural of diazide

diazinane
A six-membered saturated heterocycle containing four carbon atoms and two nitrogen atoms; any derivative of this compound

diazinanes
plural of diazinane

diazinyl
A univalent radical derived from a diazine

diazinyls
plural of diazinyl

diaziquone
A particular ethylenimine compound.

diazirino
Any univalent radical derived from diazirine

diazirinos
plural of diazirino

diazoacetate
Any salt or ester of diazoacetic acid; the esters react with alkenes to form cyclopropane derivatives

diazoacetates
plural of diazoacetate

diazoate
any salt of a diazohydroxide RN=NO⁻ M⁺

diazoates
plural of diazoate

diazoester
Any diazo derivative of an ester, especially one in which the two groups are adjacent

diazoesters
plural of diazoester

diazoethane
The diazo compound CH₃-CH=N⁺=N⁻

diazohydrocarbon
Any diazo derivative of a hydrocarbon

diazohydrocarbons
plural of diazohydrocarbon

diazohydroxide
any compound having the general formula RN=NOH

diazohydroxides
plural of diazohydroxide

diazoindacene
Any diazo compound derived from indacene

diazoindacenes
plural of diazoindacene

diazoketone
Any diazo derivative of a ketone

diazoketones
plural of diazoketone

diazomethane
the simplest diazo compound, CH₂=N⁺=N⁻; a toxic, yellow, explosive gas; used in analytical chemistry to convert carboxylic acids into their methyl esters for analysis via gas-liquid chromatography

diazomethanes
plural of diazomethane

diazomethyl
A univalent radical derived from diazomethane

diazotate
a diazoate

dibehenate
Any compound that has two behenate groups

dibehenates
plural of dibehenate

dibenzoate
Any organic compound that has two benzoate groups

dibenzoates
plural of dibenzoate

dibenzocycloheptene
Any of several isomeric tricyclic hydrocarbons consisting of a cycloheptene ring fused with two benzene rings

dibenzocycloheptenes
plural of dibenzocycloheptene

dibenzopyran
Either of two isomeric tricyclic aromatic heterocycles formed by the fusion of two benzene rings to one of pyran

dibenzopyrans
plural of dibenzopyran

dibenzopyrone
Any compound formed by fusion of two benzene rings to a pyrone

dibenzopyrones
plural of dibenzopyrone