C4H6O2
86.09 g/mol
Industrial ChemicalDanger
CROTONIC ACID
CAS3724-65-0EC223-077-4
Category
Industrial Chemical
Compound Class
Organic Acid
Primary Use
Manufacture of copolymers and resins
Crotonic acid is a white crystalline solid that is soluble in water and less dense than water. It is corrosive to metals and tissue and is primarily used in the manufacture of copolymers and resins.
Manufacture of copolymers and resinsCoating and fungicideCorrosion resistance additive
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
StrongSame Parent
Crotonic acid
CAS107-93-7
Production of copolymers for coatings and resins
ReferenceSame Category
Endo-beta-1,4-mannanase
CAS37288-54-3
Industrial enzyme for polysaccharide hydrolysis
ReferenceSame Category
Palmitoleic acid
CAS373-49-9
monounsaturated fatty acid
ReferenceSame Category
2,2-Difluoropropionic acid
CAS373-96-6
Building block for synthesis
ReferenceSame Category
Denatonium benzoate
CAS3734-33-6
aversive agent and denaturant
Safety Reference
Danger
H302Harmful if swallowed
H312Harmful in contact with skin
H314Causes severe skin burns and eye damage
H318Causes serious eye damage
H311Toxic in contact with skin
H315Causes skin irritation
H319Causes serious eye irritation
Regulatory Compliance1
- CN Catalogue of Hazardous ChemicalsCNRegulation
Customs Tariff Classification
The international HS code for CROTONIC ACID (CAS 3724-65-0) is 2916.19.
HS code (international, 6-digit)
2916.19
EU CN code (8-digit)
2916 19 40
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
(E)-but-2-enoic acid
InChIKey
LDHQCZJRKDOVOX-NSCUHMNNSA-N
SMILES
C/C=C/C(=O)O
Synonyms (45)
- (2E)-2-Butenoic acid
- (2E)-2-butenoate
- (2E)-but-2-enoate
- (2E)-but-2-enoic acid
- (E)-2-Butenoic acid
- (E)-Crotonic acid
- (E)-but-2-enoate
- (E)-but-2-enoic acid
- 2-Butenoate
- 2-Butenoic acid, (E)-
- 2-Butenoicacid
- 2-butenic acid
- 2-butenoic acid, (2E)-
- 2E-butenoic acid
- 3-Methylacrylic acid
- Acrylic acid, 3-methyl-
- BUTENOIC ACID
- Butenoate
- CROTONIC ACID
- CROTONIC ACID, TRANS-
- Crotonic acid, (E)-
- Crotonic acid, liquid
- Crotonic acid, solid
- Crotonsaeure
- Kyselina krotonova
- Kyselina krotonova [Czech]
- Solid crotonic acid
- a-butenoate
- a-butenoic acid
- a-crotonic acid
- acide crotonique
- alpha-Butenoic acid
- alpha-Crotonic acid
- alpha-butenoate
- b-methacrylic acid
- b-methylacrylic acid
- beta-Methacrylic acid
- beta-Methylacrylic acid
- trans-2-Butenoic acid
- trans-Crotonic acid
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