Biotin-PEG2-propionicacid-1g$472.00 Biotin-PEG2-propionic acid Product Catalog # Size Price (USD) Quantity Biotin-PEG2-propionicacid-1g 271612-1G 1 g $472.00 - Biotin-PEG2-propionicacid-1g quantity + For more size options, please click: Biotin-PEG2-propionic acid Add to cart Additional information Additional information Weight 0.001 kg Size 1 g For Research & Development use only. Not for testing and/or use on humans.