Product Description trans-2-Butene-1,4-dicarboxylic acid Other Details Molecular Formula: C6H8O4 Molecular Weight: 144.13 CAS Number: 4436-74-2 Minimum Purity: 98% (HPLC) UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 100mg Leadtime:20 Days Sizes 2: 1g Leadtime:20 Days Sizes 3: 5g Leadtime:20 Days