Product Description Di-tert-Butyl acetylenedicarboxylate Other Details Molecular Formula: C12H18O4 Molecular Weight: 226.27 CAS Number: 66086-33-7 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