C5H8O2
100.12 g/mol
Flavor & FragranceDanger
Methyl crotonate
CAS623-43-8EC210-793-7
Category
Flavor & Fragrance
Compound Class
Ester
Primary Use
fragrance ingredient
Methyl crotonate is an ester compound used primarily as a fragrance ingredient. It possesses a fruity, wine-like odor and is employed in flavor and fragrance formulations.
fragrance ingredientflavor ingredient
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
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fragrance ingredient
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fragrance ingredient
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fragrance ingredient
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fragrance ingredient
ReferenceSame Category
Ethyl crotonate
CAS623-70-1
flavor and fragrance ingredient
ReferenceSame Category
Methyl valerate
CAS624-24-8
Flavor and fragrance ingredient
ReferenceSame Category
Methyl levulinate
CAS624-45-3
flavor and fragrance ingredient
ReferenceSame Category
Amyl propionate
CAS624-54-4
Solvent and flavor agent
Safety Reference
Danger
H225Highly flammable liquid and vapour
H315Causes skin irritation
H318Causes serious eye damage
H319Causes serious eye irritation
H335May cause respiratory irritation
Regulatory Compliance1
- CN Catalogue of Hazardous ChemicalsCNRegulation
Customs Tariff Classification
The international HS code for Methyl crotonate (CAS 623-43-8) is 2916.19.
HS code (international, 6-digit)
2916.19
EU CN code (8-digit)
2916 19 95
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
methyl (E)-but-2-enoate
InChIKey
MCVVUJPXSBQTRZ-ONEGZZNKSA-N
SMILES
C/C=C/C(=O)OC
Synonyms (30)
- (E)-CH3CH=CHC(O)OCH3
- (E)-Methyl but-2-enoate
- 1-(Methoxycarbonyl)propene
- 2-Butenoic acid, methyl ester
- Crotonic acid, methyl ester
- Methyl (2E)-2-butenoate #
- Methyl (E)-2-butenoate
- Methyl 2-butenoate
- Methyl 2-butenoate, (E)-
- Methyl E-crotonate
- Methyl crotonate
- Methyl crotonate, (E)-
- Methyl trans-2-butenoate
- Methyl trans-crotonate
- methyl (2E)-but-2-enoate
- methyl (E)-but-2-enoate
- trans-Methyl crotonate
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