Product Description mPEG8-Propyne Other Details Molecular Formula: C20H38O9 Molecular Weight: 422.5 CAS Number: 880081-81-2 Minimum Purity: 0.95 UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 1g Leadtime:50 Days Sizes 2: 0 Leadtime:0 Sizes 3: 0 Leadtime:0