C10H12O2
164.2 g/mol
APIWarning
4-PHENYLBUTYRIC ACID
CAS1821-12-1EC217-341-8
Category
API
Compound Class
Organic Acid
Primary Use
Pharmaceutical Raw Material
4-Phenylbutyric acid is an aromatic fatty acid that is the active component of the salt sodium phenylbutyrate. It is used as a pharmaceutical raw material, particularly as a histone deacetylase inhibitor in manufacturing and research applications.
pharmaceutical intermediatehistone deacetylase inhibitor for research
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
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for 4-PHENYLBUTYRIC ACID (CAS 1821-12-1) is 2916.39.
HS code (international, 6-digit)
2916.39
EU CN code (8-digit)
2916 39 90
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
4-phenylbutanoic acid
InChIKey
OBKXEAXTFZPCHS-UHFFFAOYSA-N
SMILES
C1=CC=C(C=C1)CCCC(=O)O
Synonyms (36)
- 1-Phenylbutyric acid
- 2ay7
- 3-phenylpropylcarboxylic acid
- 3tz2
- 4-PBA;Benzenebutyric acid
- 4-PHENYLBUTYRIC ACID
- 4-Phenyl-n-butyrate
- 4-Phenyl-n-butyric acid
- 4-Phenylbutanoic acid
- 4-Phenylbutyric acid (4-PBA)
- 4-phenyl-Butyrate
- Benzenebutanoate
- Benzenebutanoic acid
- Benzenebutyrate
- Benzenebutyric acid
- Butyric acid, 4-phenyl-
- PHENYLBUTANOIC ACID
- Phenylbutyrate
- Phenylbutyrate (Acid)
- Phenylbutyric acid
- g-Phenylbutanoate
- g-Phenylbutanoic acid
- g-Phenylbutyrate
- g-Phenylbutyric acid
- gamma-Phenyl-n-butyric acid
- gamma-Phenylbutanoate
- gamma-Phenylbutanoic acid
- gamma-Phenylbutyrate
- gamma-Phenylbutyric acid
- omega-Phenylbutanoate
- omega-Phenylbutanoic acid
- omega-phenylbutyric acid
- w-Phenylbutanoate
- w-Phenylbutanoic acid
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