Product Description Salmeterol Other Details Molecular Formula: C25H37NO4 Molecular Weight: 415.57 CAS Number: 89365-50-4 Minimum Purity: 98% (HPLC) UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 5mg Leadtime:20 Days Sizes 2: 10mg Leadtime:20 Days Sizes 3: 50mg Leadtime:20 Days