Bismuth citrate

Bismuth citrate (CAS 813-93-4) is an inorganic bismuth salt used primarily as a pharmaceutical intermediate and active ingredient precursor in gastrointestinal and antimicrobial drug formulations.

Where is Bismuth citrate used?

• Pharmaceutical manufacturing: key starting material for synthesis
• Synthesis of colloidal bismuth subcitrate and related compounds for peptic ulcer and H. pylori treatment protocols
• Formulations requiring controlled bismuth delivery: stabilizing agent and buffering component
• Topical and dermatological formulations: mild preservative
• Metal-based biocidal activity at low concentrations: stabilizer
• Cosmetic manufacturing: pH regulation and stabilizing agent in creams and ointments
• Food-contact and nutritional supplement applications are evaluated as a mineral source under controlled regulatory frameworks.

Good to know: Standard grades include pharmaceutical-grade material meeting USP and BP specifications, with technical-grade material available for industrial use.

Commercial specifications

• Purity specifications typically range from 98% upward
• Documentation packages including COA and heavy metals testing are commonly expected by pharmaceutical buyers