C10H13NO2
179.22 g/mol
APIWarning
4-Amino-3-phenylbutanoic acid
CAS1078-21-3EC214-079-6
Category
API
Compound Class
Amine
Primary Use
Pharmaceutical Raw Material
4-Amino-3-phenylbutanoic acid is a central nervous system depressant with anxiolytic effects, commonly known as phenibut. It is used as an active pharmaceutical ingredient in products intended to address anxiety, insomnia, and other indications.
manufacturing of pharmaceutical formulations for anxietymanufacturing of pharmaceutical formulations for insomniainvestigational use in central nervous system 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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Related Compounds
StrongSame Parent
4-amino-3-phenylbutyric acid hydrochloride
CAS3060-41-1
pharmaceutical raw material
ReferenceSame Category
Ambroxol
CAS107814-37-9
pharmaceutical raw material
ReferenceSame Category
Exemestane
CAS107868-30-4
pharmaceutical raw material
ReferenceSame Category
Ganciclovir sodium
CAS107910-75-8
pharmaceutical raw material
ReferenceSame Category
Agomelatine-d3 (acetamide-2,2,2-d3)
CAS1079389-38-0
pharmaceutical raw material
Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H336May cause drowsiness or dizziness
Customs Tariff Classification
The international HS code for 4-Amino-3-phenylbutanoic acid (CAS 1078-21-3) is 2922.49.
HS code (international, 6-digit)
2922.49
EU CN code (8-digit)
2922 49 85
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-amino-3-phenylbutanoic acid
InChIKey
DAFOCGYVTAOKAJ-UHFFFAOYSA-N
SMILES
C1=CC=C(C=C1)C(CC(=O)O)CN
Synonyms (34)
- (+/-)-.BETA.-PHENYL-GABA
- 3-phenyl-4-aminobutanoic acid
- 4-Amino-3-phenylbutanoic acid
- 4-Amino-3-phenylbutyric acid
- Fenibut
- Fenigam
- Fenigama
- Pgaba
- PhGaba
- Phenibut
- Phenibut; Fenibut
- Phenigam
- Phenigama
- Phenylgam
- Phenylgamma
- citrocard
- noophen
- phenigamma
- phenybut
- phenygam
- phenyl-GABA
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