Product Description trans-1,4-Dibromo-2-butene Other Details Molecular Formula: C4H6Br2 Molecular Weight: 213.9 CAS Number: 821-06-7 Minimum Purity: 98% (GC) UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 1g Leadtime:20 Days Sizes 2: 5g Leadtime:20 Days Sizes 3: 25g Leadtime:20 Days