Product Description PYR-41 Other Details Molecular Formula: C17H13N3O7 Molecular Weight: 371.3 CAS Number: 418805-02-4 Minimum Purity: 0.95 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