C9H10O4S
214.24 g/mol
Pharmaceutical IntermediateWarning
4-(Methylsulfonyl)phenylacetic acid
CAS90536-66-6EC618-577-8
Category
Pharmaceutical Intermediate
Compound Class
Organic Acid
Primary Use
Pharmaceutical Intermediate
4-(Methylsulfonyl)phenylacetic acid is a chemical compound used as a pharmaceutical intermediate. Its structure includes a phenyl ring substituted with a methylsulfonyl group and an acetic acid moiety, as characterized by crystallographic analysis.
pharmaceutical intermediateresearch compound
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
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ReferenceSame Category
(S)-N-Boc-allylglycine
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ReferenceSame Category
1-(Diphenylmethyl)-3-hydroxyazetidine hydrochloride
CAS90604-02-7
pharmaceutical intermediate
Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for 4-(Methylsulfonyl)phenylacetic acid (CAS 90536-66-6) is 2930.90.
HS code (international, 6-digit)
2930.90
EU CN code (8-digit)
2930 90 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
2-(4-methylsulfonylphenyl)acetic acid
InChIKey
HGGWOSYNRVOQJH-UHFFFAOYSA-N
SMILES
CS(=O)(=O)C1=CC=C(C=C1)CC(=O)O
Synonyms (12)
- 4-mesylphenylacetic acid
- Etoricoxib Impurity 16
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