Acetylsalicylic acid

Acetylsalicylic acid (CAS 50-78-2) is a synthetic organic acid commonly known under trade names including Aspirin, Acetosal, and Rhodine. It carries no assigned E-code for food applications and is classified under HS code 29182200. The compound is produced by acetylation of salicylic acid and belongs to the broader category of organic acids.

In pharmaceutical formulations, acetylsalicylic acid functions as an active analgesic and anti-inflammatory agent by inhibiting cyclooxygenase enzymes. In personal care applications, it acts as a pH buffer and mild preservative, helping to stabilize emulsions and control microbial activity. At low concentrations it also serves as a skin-conditioning agent in topical preparations.

Acetylsalicylic acid is available in pharmaceutical grade meeting Ph.Eur. and USP specifications, supplied as a white crystalline powder. It is subject to REACH registration requirements within the EU. Standard packaging includes fiber drums and multi-layer bags, with documentation available to support GMP-compliant procurement processes.