Biotin azide-500mg$800.00 Biotin azide Product Catalog # Size Price (USD) Quantity Biotin azide-500mg 271620-500MG 500 mg $800.00 - Biotin azide-500mg quantity + For more size options, please click: Biotin azide Add to cart Additional information Additional information Weight 0.0005 kg Size 500 mg For Research & Development use only. Not for testing and/or use on humans.