Ursodeoxycholic acid

Ursodeoxycholic acid (CAS 128-13-2) is a naturally occurring bile acid supplied as a pharmaceutical-grade active, also known commercially as Ursodiol, Ursodesoxycholic acid, and ACG240. It carries no assigned E-code and is classified under HS code 29181990 within the pharmaceutical intermediates category.

In pharmaceutical formulations, ursodeoxycholic acid acts as a bile acid replacement therapy intermediate, where its amphiphilic structure enables it to solubilise cholesterol in bile and disrupt gallstone formation. In personal care applications, it functions as an emulsion stabiliser and skin conditioner by modifying interfacial tension between oil and water phases, improving formulation stability and skin barrier support.

Ursodeoxycholic acid is available in white crystalline powder form to Ph.Eur. and USP pharmaceutical standards, supporting REACH-compliant supply within the EU. Procurement teams can request documentation including CoA, MSDS, and regulatory dossiers. Standard packaging formats are available on request for both laboratory and commercial-scale quantities.