Bismuth subgallate

Bismuth subgallate (CAS 99-26-3) is an inorganic bismuth salt of gallic acid, supplied as a bright yellow powder. It is commercially known under the trade names Dermatol and Devrom, and carries no assigned E-code. The compound is classified as a pharmaceutical intermediate within the bismuth gallate family.

In wound care and dermatology, bismuth subgallate acts as an astringent and mild antiseptic by precipitating surface proteins, reducing exudate and inhibiting microbial activity on skin and mucous membranes. It is also formulated into internal deodorant capsules, where it suppresses odour-causing bacterial metabolism in the gastrointestinal tract.

Bismuth subgallate is sourced to pharmaceutical-grade specifications aligned with Ph.Eur. monograph requirements. It is available as a fine powder in quantities ranging from laboratory-scale packaging to bulk industrial supply. Procurement teams should confirm REACH compliance documentation and certificate of analysis prior to order placement.