Product Description Pirfenidone Other Details Molecular Formula: C12H11NO Molecular Weight: 185.22 CAS Number: 53179-13-8 Minimum Purity: >99% (HPLC) UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 25mg Leadtime:20 Days Sizes 2: 100mg Leadtime:20 Days Sizes 3: 1g Leadtime:20 Days