Product Description Rapamycin Other Details Molecular Formula: C51H79NO13 Molecular Weight: 914.17 CAS Number: 53123-88-9 Minimum Purity: 98% (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: 250mg Leadtime:20 Days