Product Description 4-Chlorophthalic anhydride Other Details Molecular Formula: C8H3ClO3 Molecular Weight: 182.56 CAS Number: 118-45-6 Minimum Purity: 98% (GC) UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 5g Leadtime:20 Days Sizes 2: 25g Leadtime:20 Days Sizes 3: 100g Leadtime:20 Days