Product Description SPDP-PEG4-NHS ester Other Details Molecular Formula: C23H33N3O9S2 Molecular Weight: 559.7 CAS Number: 1334177-95-5 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: 0 Leadtime:0 Sizes 3: 0 Leadtime:0