Product Description Dibutyl fumarate Other Details Molecular Formula: C12H20O4 Molecular Weight: 228.28 CAS Number: 105-75-9 Minimum Purity: 99% (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