Product Description 5-Bromo-3-chloropyrazin-2(1H)-one Other Details Molecular Formula: C4H2BrClN2O Molecular Weight: 209.43 CAS Number: 21943-17-9 Minimum Purity: 0.95 UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 250mg Leadtime:20 Days Sizes 2: 1g Leadtime:20 Days Sizes 3: 5g Leadtime:20 Days