Product Description H2N-PEG4-Propyne Other Details Molecular Formula: C11H21NO4 Molecular Weight: 231.3 CAS Number: 1013921-36-2 Minimum Purity: 0.95 UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 100mg Leadtime:20 Days Sizes 2: 250mg Leadtime:20 Days Sizes 3: 1g Leadtime:20 Days