Product Description Piperacillin Other Details Molecular Formula: C23H27N5O7S Molecular Weight: 517.55 CAS Number: 61477-96-1 Minimum Purity: 0.95 UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 1g Leadtime:20 Days Sizes 2: 5g Leadtime:20 Days Sizes 3: 0 Leadtime:0