Biotin-SLC-NHS Product Catalog # Size Price (USD) Quantity Biotin-SLC-NHS271902-500MG500 mg$535.00 - Biotin-SLC-NHS-500mg quantity + Biotin-SLC-NHS271902-1G1 g$769.00 - Biotin-SLC-NHS-1g quantity + Biotin-SLC-NHS271902-5G5 g$1,925.00 - Biotin-SLC-NHS-5g quantity + Add to cart Description CAS #: 887628-40-2 Molecular Formula: C25H40N4O6S Molecular Weight: 524.7