Product Description 4-Pentenoic anhydride Other Details Molecular Formula: C10H14O3 Molecular Weight: 182.22 CAS Number: 63521-92-6 Minimum Purity: 0.95 UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 5g Leadtime:50 Days Sizes 2: 0 Leadtime:0 Sizes 3: 0 Leadtime:0