Biotin-PEG2-propionic hydrazide Product Catalog # Size Price (USD) Quantity Biotin-PEG2-propionic hydrazide271615-500MG500 mg$500.00 - Biotin-PEG2-propionichydrazide-500mg quantity + Biotin-PEG2-propionic hydrazide271615-1G1 g$800.00 - Biotin-PEG2-propionichydrazide-1g quantity + Add to cart Description Molecular Formula: C17H31N5O5S Molecular Weight: 417.5