Product Description 6-Bromochroman-2-one Other Details Molecular Formula: C9H7BrO2 Molecular Weight: 227.05 CAS Number: 20921-00-0 Minimum Purity: 0.97 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