C5H8O2
100.12 g/mol
Pharmaceutical IntermediateDanger
Trans-2-Pentenoic acid
CAS13991-37-2EC210-975-6
Category
Pharmaceutical Intermediate
Compound Class
Organic Acid
Primary Use
Pharmaceutical Intermediate
trans-2-Pentenoic acid is an organic compound with a five-carbon chain and a carboxylic acid group. It is primarily used as a pharmaceutical intermediate in the synthesis of other chemicals and active ingredients.
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
ReferenceSame Category
Phenylacetonitrile
CAS140-29-4
pharmaceutical intermediate
ReferenceSame Category
4-chlorophenylacetonitrile
CAS140-53-4
pharmaceutical intermediate
ReferenceSame Category
4-Fluorobenzylamine
CAS140-75-0
pharmaceutical intermediate
ReferenceSame Category
3-Cyclopentylpropionic acid
CAS140-77-2
pharmaceutical intermediate
Safety Reference
Danger
H302Harmful if swallowed
H314Causes severe skin burns and eye damage
Customs Tariff Classification
The international HS code for Trans-2-Pentenoic acid (CAS 13991-37-2) 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
(E)-pent-2-enoic acid
InChIKey
YIYBQIKDCADOSF-ONEGZZNKSA-N
SMILES
CC/C=C/C(=O)O
Synonyms (25)
- (2E)-2-Pentenoic acid
- (2E)-pent-2-enoic acid
- (2Z)-2-pentenoic acid
- (E)-2-pentenic acid
- (E)-2-pentenoic acid
- (E)-Pent-2-en-1-oic acid
- (E)-pent-2-enoic acid
- 2-PENTENOICACID
- 2-Pentenoic acid, (E)-
- 2-Pentenoic acid, trans-
- 2-pentenoic acid, (2E)-
- E-2-Pentencarbonsaeure
- Pentenoic acid
- Propylidenessigsaeure
- alpha-pentenoic acid
- alpha.beta-Pentensaeure
- beta-Aethylacrylsaeure
- beta-ethyl acrylic acid
- trans-2-Pentenoic acid
- trans-2-pentenic acid
- trans-pent-2-enoic acid
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