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

2-phenylbutanoic acid

InChIKey

OFJWFSNDPCAWDK-UHFFFAOYSA-N

SMILES

CCC(C1=CC=CC=C1)C(=O)O

Synonyms (37)

(2RS)-2-Phenylbutanoic Acid; Primidone Imp. E (EP); Primidone Impurity E
Primidone EP Impurity E
(2RS)-2-Phenylbutanoic Acid
(RS)-2-Phenylbutanoate
(RS)-2-Phenylbutanoic acid
.alpha.-Phenyl-n-butyric acid
2-Ethyl-2-phenylacetic Acid
2-Phenylburyric acid
2-Phenylbutanoic acid
2-Phenylbutyrate
2-Phenylbutyric acid
2-phenylbutanoate
A-PHENYLBUTYRIC ACID
Butyric acid, 2-phenyl-
I<<-Ethylbenzeneacetic acid
Phenobarbital Impurity 3
Primidone Impurity E
a-Ethyl-a-toluate
a-Ethyl-a-toluic acid
a-Ethylbenzeneacetate
a-Ethylbenzeneacetic acid
a-Ethylphenylacetate
a-Ethylphenylacetic acid
a-Phenylbutyrate
alpha-Ethyl-alpha-toluate
alpha-Ethyl-alpha-toluic acid
alpha-Ethylbenzeneacetate
alpha-Ethylbenzeneacetic acid
alpha-Ethylphenylacetate
alpha-Ethylphenylacetic acid
alpha-Phenylbutyrate
alpha-Phenylbutyric acid
phenyl butanoic acid

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