Product Description Rofecoxib Other Details Molecular Formula: C17H14O4S Molecular Weight: 314.36 CAS Number: 162011-90-7 Minimum Purity: 98% (HPLC) UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 250mg Leadtime:20 Days Sizes 2: 1g Leadtime:20 Days Sizes 3: 5g Leadtime:20 Days