Product Description 7-Bromochroman-4-one Other Details Molecular Formula: C9H7BrO2 Molecular Weight: 227.05 CAS Number: 18442-22-3 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