Product Description Aristolochic acid B Other Details Molecular Formula: C16H9NO6 Molecular Weight: 311.25 CAS Number: 475-80-9 Minimum Purity: 0.98 UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 10mg Leadtime:50 Days Sizes 2: 0 Leadtime:0 Sizes 3: 0 Leadtime:0