Biotin-PEG3-propionic hydrazide Product Catalog # Size Price (USD) Quantity Biotin-PEG3-propionic hydrazide271616-500MG500 mg$550.00 - Biotin-PEG3-propionic hydrazide-500mg quantity + Biotin-PEG3-propionic hydrazide271616-1G1 g$880.00 - Biotin-PEG3-propionic hydrazide-1g quantity + Add to cart Description CAS #: 1381861-94-4 Molecular Formula: C19H35N5O6S Molecular Weight: 461.6