Product Description NHS-PEG6-NHS Other Details Molecular Formula: C26H40N2O15 Molecular Weight: 620.6 CAS Number: 1334170-02-3 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