Product Name: Crotonic acid
Synonyms: solidcrotonicacid;2-BUTENOIC ACID;1-PROPENE-1-CARBOXYLIC ACID;3-METHYLACRYLIC ACID;β-Methylacrylic acid;BUT-2-ENOIC ACID;BUTENOIC ACID;BETA-METHYLACRYLIC ACID
CAS: 3724-65-0
MF: C4H6O2
MW: 86.09
EINECS: 223-077-4
Product Categories: Pharmaceutical Intermediates;Fine Chemical
Mol File: 3724-65-0.mol
Crotonic acid Structure
Crotonic acid Chemical Properties
Melting point 70-72 °C(lit.)
Boiling point 180-181 °C(lit.)
density 1.027 g/mL at 25 °C(lit.)
vapor density 2.97 (vs air)
vapor pressure 0.19 mm Hg ( 20 °C)
refractive index 1.4210 (estimate)
FEMA 3908 | (E)-2-BUTENOIC ACID
Fp 190 °F
Water Solubility soluble
CAS DataBase Reference 3724-65-0(CAS DataBase Reference)
NIST Chemistry Reference Crotonic acid(3724-65-0)
EPA Substance Registry System 2-Butenoic acid(3724-65-0)
Safety Information
Hazard Codes C
Risk Statements 21/22-34
Safety Statements 26-36/37/39-45
RIDADR UN 2823 8/PG 3
WGK Germany 3
RTECS GQ2900000
Hazardous Substances Data 3724-65-0(Hazardous Substances Data)
MSDS Information
Provider Language
2-Butenoic acid English
SigmaAldrich English
ACROS English
ALFA English
Crotonic acid Usage And Synthesis
Chemical Properties Crotonic acid is a white or colorless, crystalline solid with a pungent odor. May be transported as a molten liquid.
Uses Synthesis of resins, polymers, plasticizers, drugs.
Definition Exists in cis and trans isomeric forms, the latter being the stable isomer used commercially. The cis form melts at 15C and is sometimes called isocrotonic acid.
General Description A white crystalline solid. Shipped as either a solid or liquid. Melting point 59°F. Soluble in water and less dense than water. Flash point 190°F. Corrosive to metals and tissue.
Air & Water Reactions Soluble in water.
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