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Term:
Parent Terms Term With Siblings Child Terms
(+)-DCA-CL 
(-)-DCA-CL 
(2-trans,6-cis)-dodeca-2,6-dienoic acid +  
(2E)-11-hydroxy-2-dodecenoic acid 
(2E)-11-hydroxyundec-2-enoic acid +  
(2E)-12-hydroxydodec-2-enoic acid +  
(2E)-13-hydroxytridec-2-enoic acid +  
(2E)-14-hydroxytetradec-2-enoic acid +  
(2E)-15-hydroxypentadec-2-enoic acid +  
(2E)-16-hydroxyhexadec-2-enoic acid +  
(2E)-17-hydroxyheptadec-2-enoic acid +  
(2E)-18-hydroxyoctadec-2-enoic acid +  
(2E)-19-hydroxynonadec-2-enoic acid +  
(2E)-2-heptadecenoic acid +  
(2E)-20-hydroxyicos-2-enoic acid +  
(2E)-21-hydroxyhenicos-2-enoic acid +  
(2E)-3-methylhex-2-enoic acid 
(2E)-7-hydroxyhept-2-enoic acid +  
(2E)-9-hydroxynon-2-enoic acid +  
(2E,10R)-10-hydroxyundec-2-enoic acid +  
(2E,11R)-11-hydroxydodec-2-enoic acid +  
(2E,12R)-12-hydroxytridec-2-enoic acid +  
(2E,13R)-13-hydroxytetradec-2-enoic acid +  
(2E,14R)-14-hydroxypentadec-2-enoic acid +  
(2E,15R)-15-hydroxyhexadec-2-enoic acid +  
(2E,16R)-16-hydroxyheptadec-2-enoic acid +  
(2E,17R)-17-hydroxyoctadec-2-enoic acid +  
(2E,18R)-18-hydroxynonadec-2-enoic acid +  
(2E,19R)-19-hydroxyicos-2-enoic acid +  
(2E,20R)-20-hydroxyhenicos-2-enoic acid +  
(2E,24R)-24-[(alpha-L-ascarosyl)oxy]-2-methylpentacos-2-enoic acid 
(2E,4E)-6-(2-aminophenyl)-2-hydroxy-6-oxohexa-2,4-dienoic acid 
(2E,4E)-hexa-2,4-dienoic acid +   
(2E,4E,6R,8Z)-6-hydroxytetradeca-2,4,8-trienoic acid 
(2E,4Z)-2-hydroxy-7-methyl-6-oxo-2,4-octadienoic acid 
(2E,4Z)-6-(4-chlorophenyl)-2-hydroxy-6-oxohexa-2,4-dienoic acid 
(2E,4Z)-8-hydroxydeca-2,4-dienoic acid +  
(2E,6E,10E)-geranylgeranic acid +  
(2E,6E,10E,14E)-omega-hydroxygeranylgeranic acid 
(2E,6E,10R,11S)-10,11-epoxy-3,7,11-trimethyltrideca-2,6-dienoic acid 
(2E,6R)-6-hydroxyhept-2-enoic acid +  
(2E,6Z,9Z,12Z,15Z,18Z,21Z)-tetracosaheptaenoic acid +  
(2E,7R)-7-hydroxyoct-2-enoic acid +  
(2E,8R)-8-hydroxynon-2-enoic acid +  
(2E,9R)-9-hydroxydec-2-enoic acid +  
(2S,3R)-glycosmisic acid 
(2Z)-2,3-dihydroxyacrylic acid 
(2Z,4E)-4-hydroxymuconic semialdehyde 
(2Z,4Z)-2-hydroxyhexa-2,4-dienoic acid 
(3R)-farnesyl-6-hydroxy-2,3,5-trimethyl-4-oxocyclohexa-1,5-diene-1-carboxylic acid 
(3R,4R)-3,4-dihydroxycyclohexa-1,5-diene-1-carboxylic acid 
(E)-10-hydroxydec-2-enoic acid +   
(E)-11-methyldodec-2-enoic acid 
(E)-2,4,6-trimethyltetracos-2-enoic acid 
(E)-3-(indol-2-yl)acrylic acid 
(E)-3-(indol-3-yl)acrylic acid 
(E)-endo-beta-bergamoten-12-oic acid 
(E)-hexadec-2-enoic acid +  
(E)-non-2-enoic acid 
(E,E)-piperic acid +   
(Z)-13-methyltetradec-2-enoic acid 
(Z)-14-methylpentadec-2-enoic acid 
(Z)-3-aminoacrylic acid 
(Z)-tetradec-2-enoic acid 
1'-deoxyabscisic acid 
1,4,5,6-tetrahydro-6-oxonicotinic acid 
1-carbapenem-3-carboxylic acid 
1-deoxy-11-oxopentalenic acid 
1-deoxypentalenic acid 
14-hydroxy-6,12-muuroloadien-15-oic acid 
2,3-dihydroxy-2,3-dihydrobenzoic acid +  
2,4-dihydroxy-5-methyl-6-oxo-2,4-hexadienoic acid 
2,6-dimethyl-5-methylenehept-2-enoic acid +  
2-acetamido-2-deoxy-3-O-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-6-O-sulfo-D-galactopyranose +  
2-amino-5-chloro-cis,cis-muconic 6-semialdehyde 
2-aminoacrylic acid +  
2-aminomuconic 6-semialdehyde 
2-butenoic acid +   
A butenoic acid having the double bond at position C-2.
2-chloroacrylic acid 
2-decenoic acid +  
2-dodecenoic acid +  
2-ethylacrylic acid 
2-heptenoic acid +  
2-hexacosenoic acid +  
2-hydroxy-3-methyl-2-butenoic acid 
2-hydroxy-4-(1-oxo-1,3-dihydro-2H-inden-2-ylidene) but-2-enoic acid 
2-hydroxy-4-(2-oxo-1,3-dihydro-2H-inden-1-ylidene) but-2-enoic acid 
2-hydroxy-5-methyl-cis,cis-muconic semialdehyde 
2-hydroxy-6-(2-hydroxyphenyl)-6-oxo-cis,cis-hexa-2,4-dienoic acid 
2-hydroxy-6-oxo-2,4-heptadienoic acid +  
2-hydroxy-6-oxo-6-phenylhexa-2,4-dienoic acid 
2-hydroxy-6-oxohexa-2,4-dienoic acid +  
2-hydroxyacrylic acid 
2-hydroxypenta-2,4-dienoic acid +  
2-methylbut-2-enoic acid +  
2-tetradecenoic acid +  
2-trans-4'-dihydroabscisic acid 
2-undecenoic acid +  
3,4,5-trihydroxy-1-cyclohexene-1-carboxylic acid 
3,7-dimethylocta-2,6-dienoate(1-) 
3-(4,6-dihydroxy-3-oxocyclohexa-1,4-dien-1-yl)acrylic acid 
3-dehydroshikimic acid 
3-hydroxy-5,9,17-trioxo-4,5:9,10-disecoandrosta-1(10),2-dien-4-oic acid +  
3-hydroxybut-2-enoic acid +   
3-methylbut-2-enoic acid +  
3-nitroacrylic acid 
3alpha,7beta-dihydroxy-5beta-cholest-24-en-26-oic acid 
4,4'-diapolycopen-4-oic acid 
4,4'-diaponeurosporenoic acid 
4-coumaroylshikimic acid 
4-deoxy-Delta(4)-beta-D-GlcpA 
5-[(E)-caffeoyl]shikimic acid 
5-aminocyclohexa-1,3-diene-1-carboxylic acid +  
6-imino-5-oxocyclohexa-1,3-dienecarboxylic acid 
6:2 fluorotelomer unsaturated carboxylic acid 
6beta,16beta-diacetoxy-25-hydroxy-3,7-dioxy-29-nordammara-1,17(20)-dien-21-oic acid 
7-deoxyloganetic acid +  
7-deoxyloganic acid 
7beta-aminocephalosporanic acid  
8,8a-epoxymorellic acid 
8:2 fluorotelomer unsaturated carboxylic acid 
8alpha,19-dihydroxylabd-13E-ene-15-oic acid 
abscisic acids +   
acrivastine  
acrylic acid +   
all-trans-7-hydroxyhexadeca-2,4,8,10-tetraenoic acid +  
all-trans-acitretin  
alpha-bergamotenoic acid 
alpha-santalenoic acid 
ascr#13 
ascr#15 +  
ascr#17 +  
ascr#19 +  
ascr#21 +  
ascr#23 
ascr#25 
ascr#29 
ascr#3 +  
ascr#31 
ascr#33 
ascr#35 
ascr#37 
ascr#7 +  
beta-D-4-deoxy-Delta(4)-GlcpA-(1->3)-D-GlcpNAc +  
but-3-enoic acid +  
caffeic acid quinone 
carbapenem MM22383 
cinnamic acids +   
cis-5,6-dihydroxy-4-isopropylcyclohexa-1,3-dienecarboxylic acid 
cuevaene A 
Cyclohex-1-enecarboxylic acid 
cyclohexa-1,5-diene-1-carboxylic acid +  
cyclosporin A metabolite M1A 
dihydrophaseic acid 
dodeca-2,6,10-trienoic acid +   
enbucrilate 
enol-phenylpyruvic acid 
epi-dihydrophaseic acid 
farnesoic acid +   
fusidic acid  
gamendazole 
gaudichaudiic acid F 
gaudichaudiic acid G 
geranic acid 
glycosmisic acid +  
glycosmisic acid 4'-sulfate 
glycosmisic acid sulfate 
guvacine +  
hbas#3 
hepta-2,4,6-trienoic acid +  
hygrolidin 
icas#15 
icas#17 
icas#19 
icas#21 
icas#3 
icas#7 
icos#15 
icos#17 
icos#3 
kalimantacin B 
leptomycin +   
loganic acid 
maleamic acid 
mbas#3 
meropenem +   
methacrylic acid +   
myrtenic acid 
N-formylmaleamic acid 
O-butenoyl-L-carnitine +  
O-butenoylcarnitine +  
octadec-2-enoic acid +  
oscr#15 +  
oscr#17 +  
oscr#19 +  
oscr#21 +  
oscr#23 +  
oscr#25 +  
oscr#27 +  
oscr#29 +  
oscr#3 +  
oscr#31 +  
oscr#33 +  
oscr#35 +  
oscr#37 +  
oscr#7 +  
pent-2-enoic acid +  
penta-2,4-dienoic acid +   
pentalenolactone 
pentalenolactone D 
pentalenolactone E 
pentalenolactone F 
perillic acid +   
phaseic acid +  
phenylpropiolic acid 
propynoic acid +  
retinoic acid +   
sedanonic acid 
shikimic acid +   
sorbic acid +   
torvanol A hydrogen sulfate 
trans-2-icosenoic acid +  
trans-2-pentadecenoic acid +  
trichostatic acid +   
triptobenzene D 
triptobenzene H 
triptoditerpenic acid B 
triptohairic acid 
triptoquinone A 
TX-1875 
unsaturated heparin disaccharide +  
urocanic acid +   
valanimycin 
zealexin A1 

Synonyms
Exact Synonyms: but-2-enoic acid
Related Synonyms: 2-Butenoate ;   2-butenic acid ;   3-methylacrylic acid ;   CTA ;   Crotonic acid ;   Crotonsaeure ;   Formula=C4H6O2 ;   InChI=1S/C4H6O2/c1-2-3-4(5)6/h2-3H,1H3,(H,5,6) ;   InChIKey=LDHQCZJRKDOVOX-UHFFFAOYSA-N ;   SMILES=[H]C(C)=CC(O)=O ;   acide crotonique ;   alpha-butenoic acid ;   alpha-crotonic acid ;   beta-methacrylic acid ;   beta-methylacrylic acid
Alternate IDs: CHEBI:1027 ;   CHEBI:19484 ;   CHEBI:19485
Xrefs: Beilstein:1098434 "Beilstein" ;   CAS:3724-65-0 "ChemIDplus" ;   CAS:3724-65-0 "KEGG COMPOUND" ;   Gmelin:324286 "Gmelin" ;   KEGG:C01771 ;   Reaxys:1098434 "Reaxys"
Cyclic Relationships: is_conjugate_acid_of CHEBI:36258

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RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.