Biotin alkyne Product Catalog # Size Price (USD) Quantity Biotin alkyne270101-500MG500 mg$200.00 - Biotin alkyne-500mg quantity + Biotin alkyne270101-1G1 g$350.00 - Biotin alkyne-1g quantity + Biotin alkyne270101-5G5 g$700.00 - Biotin alkyne-5g quantity + Add to cart Description Synonym: N-Propargylbiotinamide CAS #: 773888-45-2 Molecular Formula: C13H19N3O2S Molecular Weight: 281.4