crotonyl
The univalent radical CH₃-CH=CH-CO- derived from crotonic acid

crotyl
The univalent radical (cis- or trans-) CH₃-CH=CH-CH₂-

crotyls
plural of crotyl

cruentaren
A macrolide secreted by the myxobacterium Byssovorax cruenta.

crustaceorubin
The red pigment zoonerythrin.

crustaxanthin
A particular carotenoid.

cryogenine
A biphenylquinolizidine lactone alkaloid, obtained from sinicuichi, with antiinflammatory activity similar to that of aspirin.

cryohydrate
Any salt that forms crystals containing water of crystallization only at low temperatures

cryohydrates
plural of cryohydrate

cryoprotectant
Any substance (typically a polyhydric alcohol) that prevents cell damage on freezing

cryoprotectants
plural of cryoprotectant

cryoprotector
Synonym of cryoprotectant.

cryoprotectors
plural of cryoprotector

cryptand
any of a class of polycyclic compounds related to the crown ethers, having three chains attached at two nitrogen atoms

cryptands
plural of cryptand

cryptanoside
A particular steroid glycoside.

cryptate
a cryptand

cryptocapsin
A particular carotenoid.

cryptograndioside
A particular steroid glycoside.

cryptograndoside
A particular steroid glycoside.

cryptomonaxanthin
A naturally occurring alcohol carotenoid.

cryptopine
A colorless crystalline alkaloid obtained in small quantities from poppies.

cryptopines
plural of cryptopine

cryptopleurine
The toxic polycyclic alkaloid (14aR)-2,3,6-trimethoxy-11,12,13,14,14a,15-hexahydro-9H-phenanthro[9,10-b]quinolizine, present in yeasts of the genus Saccharomyces.

cryptopleurospermine
A benzilic alkaloid found in Cryptocarya pleurosperma.

cryptostigmin
A particular steroid glycoside.

cryptoxanthin
A xanthophyll pigment (a hydroxy derivative of carotene) that occurs widely in nature.

cryptoxanthins
plural of cryptoxanthin

crystolon
A silicon carbide abrasive.

cucurbitine
A glucoside found in watermelon seeds.

cufraneb
A particular fungicide.

culcitoside
A particular steroid glycoside.

culicide
Any insecticide that kills mosquitos

culicides
plural of culicide

cumarin
Alternative form of coumarin.

cumarins
plural of cumarin

cumate
Any salt or ester of cumic acid

cumates
plural of cumate

cumene
The aromatic hydrocarbon isopropyl benzene present in petroleum.

cumenol
Any of three isomeric isopropyl derivatives of phenol

cumenols
plural of cumenol

cuminol
The aromatic alcohol (4-propan-2-ylphenyl)methanol

cuminyl
The univalent radical derived from cuminol

cuminyls
plural of cuminyl

cumulene
Any hydrocarbon (or derivative) having three or more cumulative double bonds; e.g., R₂C=C=C=CR₂.

cumulenes
plural of cumulene

cuprammonium
Synonym of cuproammonium.

cuprammoniums
plural of cuprammonium

cuprenyl
A univalent radical or cation derived from cuprene

cupriethylenediamine
A herbicide and cellulose solvent.

cuprizone
A copper-chelating agent that inhibits monoamine oxidases

cuproammonium
The cation Cu(NH₃)₄²⁺ formed by adding ammonia to copper salts: A complex of four molecules of ammonia surrounding a copper ion.

cuprobam
A particular fungicide.

curarin
Alternative form of curarine.

curarine
The alkaloid responsible for the poisonous effects of curare.

curarines
plural of curarine

curcumene
The hydrocarbon 2-methyl-6-tolyl-2-heptene

curcumenol
The tricyclic sesquiterpene alicyclic alcohol 5,8-epoxy-5-beta-guiaia-7(11),9-dien-8-alpha-ol

curcumol
The sesquiterpenoid alcohol (2S,5S,8S,9S)-2-methyl-6-methylidene-9-propan-2-yl-11-oxatricyclo[6.2.1.01,5]undecan-8-ol

curcuphenol
The sesquiterpenoid phenol 5-methyl-2-(6-methylhept-5-en-2-yl)phenol present in some marine sponges

curdione
The sesquiterpenoid ketone (3S,6E,10S)-6,10-dimethyl-3-propan-2-ylcyclodec-6-ene-1,4-dione

curillin
A particular steroid glycoside.

curilloside
A particular steroid glycoside.

curtisin
A tetracyclic sulfur-containing alkaloid with IUPAC name 8-hydroxy-4-[(S)-methylsulfinyl]-1,6-diazatetracyclo[7.6.1.0^(5,16).0^(10,15)]hexadeca-3,5(16),7,9,11,14-hexaene-2,13-dione

cuscohygrine
A pyrrolidine alkaloid found in coca and certain other plants.

cuskohygrine
Alternative form of cuscohygrine.

cuspidoside
A particular steroid glycoside.

cutan
A hydrocarbon polymer, of uncertain structure but thought to be similar to kerogen, found in some plants.
An oriented deposit which can be composed of any of the component substances of the soil material.

cutans
plural of cutan

cyanato
The univalent radical NCO- derived from cyanate
The univalent radical NC- derived from cyanide

cyanatos
plural of cyanato

cyanaurate
An aurocyanide.

cyanaurates
plural of cyanaurate

cyanazine
The heterocyclic nitrile 2-[[4-chloro-6-(ethylamino)-1,3,5-triazin-2-yl]amino]-2-methylpropanenitrile which is a teratogenic pesticide

cyanidin
An anthocyanidin pigment, 2-(3,4-dihydroxyphenyl) chromenylium-3,5,7-triol, found in many red berries.

cyanidine
Alternative form of cyanidin.

cyanidines
plural of cyanidine

cyanidins
plural of cyanidin

cyanidol
Synonym of catechol.

cyanoacetamide
The amide of cyanoacetic acid

cyanoacetate
Any salt or ester of cyanoacetic acid

cyanoacetates
plural of cyanoacetate

cyanoacetyl
The univalent radical NC-CH₂-CO- derived from cyanoacetic acid

cyanoacetylene
The linear acetylenic nitrile HC≡C-CN or any derivative of this compound

cyanoacetylenes
plural of cyanoacetylene

cyanoacetyls
plural of cyanoacetyl

cyanoacrylamide
The amide of cyanoacrylic acid

cyanoacrylate
Any of a class of esters of cyanoacrylic acid that are used as instant adhesives.

cyanoacrylates
plural of cyanoacrylate

cyanoborohydrate
Misspelling of cyanoborohydride.

cyanoborohydride
The anion BH₃-C≡N⁻; any salt containing this anion

cyanoborohydrides
plural of cyanoborohydride

cyanodiacetylene
The linear acetylenic nitrile HC≡C-C≡C-CN or any derivative of this compound

cyanoethyl
The univalent radical NC-CH₂-CH₂- most often obtained by protonation of acrylonitrile

cyanoethyls
plural of cyanoethyl

cyanoform
The compound CH(CN)₃ analogous to the haloforms

cyanoformate
The anion N≡C-COO⁻ derived from cyanoformic acid; and salt or ester of this acid

cyanoformates
plural of cyanoformate

cyanogen
The pseudohalogen (CN)₂; a colorless, poisonous gas used as a rocket propellant, an insecticide and in chemical warfare.
The radical -CN.

cyanogens
plural of cyanogen

cyanoglucoside
A glucoside in which the aglycone is a cyanide group

cyanoglucosides
plural of cyanoglucoside

cyanoglycoside
A glycoside in which the aglycone is a cyanide group

cyanoglycosides
plural of cyanoglycoside

cyanoguanide
Any univalent radical or anion derived from cyanoguanidine

cyanoguanides
plural of cyanoguanide

cyanohydrin
Any compound having both a hydroxy and a cyanide functional group, especially one having these groups attached to the same carbon atom

cyanohydrins
plural of cyanohydrin

cyanophosphonate
The anion or group formed by replacing one of the hydroxyl groups of a phosphonate by a cyanide group

cyanophosphonates
plural of cyanophosphonate

cyanophyll
A blue pigment thought to have been one of the component parts of chlorophyll.

cyanopropyl
Any of three isomeric univalent radicals in which a hydrogen atom of a propyl radical is replaced by cyanide e.g. N≡C-CH₂-CH₂-CH₂-

cyanopropyls
plural of cyanopropyl

cyanoquinoline
Any cyano derivative of quinoline

cyanoquinolines
plural of cyanoquinoline

cyantraniliprole
An insecticide of the ryanoid class.

cyanurin
The pigment that gives the urine a bluish tinge in cases of cyanuria.

cyazofamid
A particular fungicide.

cybisterone
A steroid obtained from the beetle Cybister lateralimarginalis.

cyclafuramid
A particular fungicide.

cyclamate
any salt or ester of cyclamic acid, especially the sodium and calcium salts, which have been used as artificial sweeteners

cyclamates
plural of cyclamate

cyclamin
A white amorphous substance, originally regarded as a glucoside but now known to be a triterpenoid glycoside, extracted from the corm of Cyclamen purpurascens.