Product Description Ramelteon Other Details Molecular Formula: C16H21NO2 Molecular Weight: 259.34 CAS Number: 196597-26-9 Minimum Purity: 98% (HPLC) UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 1mg Leadtime:20 Days Sizes 2: 5mg Leadtime:20 Days Sizes 3: 10mg Leadtime:20 Days