CAS Registry Number

CAS 556-08-1 — 4-Acetamidobenzoic acid

4-Acetamidobenzoic acid is an aromatic amide derivative of benzoic acid, commonly used as an intermediate in pharmaceutical synthesis, particularly for the production of nonsteroidal anti-inflammatory drugs (NSAIDs) like acetaminophen derivatives, and in dye manufacturing. It is also employed in organic synthesis for functional group transformations. This chemical has a CAS number of 556-08-1, with the molecular formula CH3CONHC6H4CO2H and a molecular weight of 179.17. It is stable at ambient storage conditions and carries no signal word for hazard classification. Molekula supplies 4-Acetamidobenzoic acid from research to bulk quantities with full documentation and ISO 9001:2015 traceability.