C5H8O2
100.12 g/mol
OtherDanger
Angelic acid
CAS565-63-9EC209-284-2
Category
Other
Compound Class
Organic Acid
Primary Use
plant metabolite
Angelic acid is a monocarboxylic unsaturated organic acid that occurs naturally in plants of the Apiaceae family. It is a volatile solid with a biting taste and pungent sour odor, and it is the cis isomer of 2-methyl-2-butenoic acid.
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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Referencestereoisomer of
(E)-2,3-dimethylacrylic acid
CAS80-59-1
Perfume and flavoring agent
Safety Reference
Danger
H290May be corrosive to metals
H314Causes severe skin burns and eye damage
H318Causes serious eye damage
Customs Tariff Classification
The international HS code for Angelic acid (CAS 565-63-9) 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
(Z)-2-methylbut-2-enoic acid
InChIKey
UIERETOOQGIECD-ARJAWSKDSA-N
SMILES
C/C=C(/C)\C(=O)O
Synonyms (32)
- (2Z)-2-Methyl-2-butenoic acid
- (2Z)-2-methylbut-2-enoic acid
- (Z) CH3CH=C(CH3)COOH
- (Z)-2-methylbut-2-enoic acid
- (Z)-2-methylcrotonic acid
- (z)-2,3-dimethylacrylic acid
- 2-Methyl-(2Z)-2-butenoic acid
- 2-Methyl-(Z)-2-Butenoic acid
- 2-Methyl-(Z)-Crotonic acid
- 2-Methyl-2-butenoic acid, cis
- 2-Methylisocrotonic acid
- 2-methyl-2Z-butenoic acid
- 2-methyl-cis-crotonic acid
- 2-methylbut-2-enoic acid
- Angelic acid
- Angelicasaeure
- Angelikasaeure
- Angelikasaure
- Z-2-methyl-2-butenoic acid
- acide angelique
- acido angelico
- alpha-methylisocrotonic acid
- cis-2,3-dimethylacrylic acid
- cis-2-Methyl-2-butenoic acid
- cis-2-dimethylcrotonic acid
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