Product Description Ro 31-8220 mesylate Other Details Molecular Formula: C25H23N5O2S.CH4O3S Molecular Weight: 553.66 CAS Number: 138489-18-6 Minimum Purity: 98+% UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 1mg Leadtime:20 Days Sizes 2: 2mg Leadtime:20 Days Sizes 3: 5mg Leadtime:20 Days