Product Description Biotin-PEG2-azide Other Details Molecular Formula: C16H28N6O4S Molecular Weight: 400.5 CAS Number: 945633-30-7 Minimum Purity: 0.97 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