Bismuth subgallate

Bismuth subgallate (CAS 99-26-3) is an inorganic-organic bismuth salt used primarily as an active pharmaceutical ingredient and excipient in medicinal preparations.

Where is Bismuth subgallate used?

• Gastrointestinal and wound-care formulations: astringent and intestinal adsorbent
• Oral pharmaceuticals: tablets and suppositories for diarrhea and flatulence
• Topical wound dressings and surgical packing materials: astringent action on mucosal and skin tissue
• Rectal preparations, including hemorrhoid treatments, where controlled delivery is required
• Compounding pharmacies source it as a raw material for custom-dose formulations when standard commercial products do not meet patient-specific requirements.

Good to know: Pharmaceutical-grade specifications conform to USP, BP, and Ph. Eur. monographs, the standard references for buyers qualifying it as an API or excipient. Bulk quantities are typically offered in moisture-controlled packaging given the compound's sensitivity to light and humidity.

Commercial specifications

• Pharmaceutical-grade specifications conforming to USP, BP, and Ph. Eur. monographs
• Bulk quantities in moisture-controlled packaging
• Sensitive to light and humidity