5892-10-4-Bismuth-Oxycarbonate500 Bismuth Oxycarbonate Synonym: Bismuth subcarbonate, Bismuth(III) carbonate basic CAS Number: 5892-10-4 Assay: Min. 80-82% Linear Formula: (BiO)2CO3 Molecular Weight: 509.97 Physical Form: Powder Packaging: Plastic Bottle