CHEBI:41131 - crotonic acid

Main ChEBI Ontology Automatic Xrefs Reactions Pathways Models
ChEBI Name crotonic acid
ChEBI ID CHEBI:41131
Definition A but-2-enoic acid with a trans- double bond at C-2. It has been isolated from Daucus carota.
Stars This entity has been manually annotated by the ChEBI Team.
Secondary ChEBI IDs CHEBI:36250, CHEBI:41125
Supplier Information
Download Molfile XML SDF
Wikipedia License
Waiting for wikipedia content
Read full article at Wikipedia
Formula C4H6O2
Net Charge 0
Average Mass 86.08924
Monoisotopic Mass 86.037
InChI InChI=1S/C4H6O2/c1-2-3-4(5)6/h2-3H,1H3,(H,5,6)/b3-2+
InChIKey LDHQCZJRKDOVOX-NSCUHMNNSA-N
SMILES [H]\C(C)=C/C(O)=O
Roles Classification
Chemical Role(s): Bronsted acid
A molecular entity capable of donating a hydron to an acceptor (Bronsted base).
(via oxoacid )
Biological Role(s): plant metabolite
Any eukaryotic metabolite produced during a metabolic reaction in plants, the kingdom that include flowering plants, conifers and other gymnosperms.
View more via ChEBI Ontology
ChEBI Ontology
Outgoing crotonic acid (CHEBI:41131) has role plant metabolite (CHEBI:76924)
crotonic acid (CHEBI:41131) is a 2-butenoic acid (CHEBI:17217)
crotonic acid (CHEBI:41131) is conjugate acid of crotonate (CHEBI:35899)
Incoming (R)-crotonylcarnitine (CHEBI:84898) has functional parent crotonic acid (CHEBI:41131)
crotonoyl-CoA (CHEBI:15473) has functional parent crotonic acid (CHEBI:41131)
tiglic acid (CHEBI:9592) has functional parent crotonic acid (CHEBI:41131)
crotonate (CHEBI:35899) is conjugate base of crotonic acid (CHEBI:41131)
IUPAC Name
(2E)-but-2-enoic acid
Synonyms Sources
(2E)-2-butenoic acid ChEBI
(E)-2-Butenoic acid NIST Chemistry WebBook
(E)-but-2-enoic acid ChEBI
(E)-Crotonic acid NIST Chemistry WebBook
2-Butenoic acid KEGG COMPOUND
2-butenoic acid ChEBI
3-methylacrylic acid ChEBI
α-butenoic acid ChEBI
α-crotonic acid ChEBI
BEO ChEBI
β-methacrylic acid ChEBI
β-methylacrylic acid ChEBI
Crotonic acid KEGG COMPOUND
trans-2-Butenoic acid ChemIDplus
trans-Crotonic Acid NIST Chemistry WebBook
Manual Xrefs Databases
BEO PDBeChem
C01771 KEGG COMPOUND
CROTONATE MetaCyc
Crotonic_acid Wikipedia
HMDB0010720 HMDB
LMFA01030195 LIPID MAPS
View more database links
Registry Numbers Types Sources
107-93-7 CAS Registry Number ChemIDplus
107-93-7 CAS Registry Number NIST Chemistry WebBook
1719943 Beilstein Registry Number Beilstein
1719943 Reaxys Registry Number Reaxys
3724-65-0 CAS Registry Number KEGG COMPOUND
Citations Waiting for Citations Types Sources
12867486 PubMed citation Europe PMC
15960983 PubMed citation Europe PMC
24390198 PubMed citation Europe PMC
Last Modified
28 July 2014
General Comment
2011-03-29 Used in organic synthesis, and shown to have strong herbicidal properties.