C8H14O2
142.2 g/mol
Pharmaceutical IntermediateWarning
3-Cyclopentylpropionic acid
CAS140-77-2EC205-433-0
Category
Pharmaceutical Intermediate
Compound Class
Organic Acid
Primary Use
Pharmaceutical Intermediate
3-Cyclopentylpropionic acid, also known as cypionic acid, is an aliphatic carboxylic acid. It is primarily used as a pharmaceutical intermediate in the manufacture of cypionate esters.
Pharmaceutical intermediate for cypionate esters
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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Safety Reference
Warning
H226Flammable liquid and vapour
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for 3-Cyclopentylpropionic acid (CAS 140-77-2) is 2916.20.
HS code (international, 6-digit)
2916.20
EU CN code (8-digit)
2916 20 00
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
3-cyclopentylpropanoic acid
InChIKey
ZRPLANDPDWYOMZ-UHFFFAOYSA-N
SMILES
C1CCC(C1)CCC(=O)O
Synonyms (12)
- CYCLOPENTYLPROPANOIC ACID (USP-RS)
- 3-Cyclopentylpropanoic acid
- 3-Cyclopentylpropionic acid
- 3-Cylcopentylpropanoic acid
- CYCLOPENTYLPROPANOIC ACID
- Cyclopentanepropanoic acid
- Cyclopentanepropionic acid
- Cyclopentylpropionic acid
- cypionic acid
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