Z-Ile-OSu Product Catalog # Size Price (USD) Quantity Z-Ile-OSu411003-5G5 g$75.00 - Z-Ile-OSu-5g quantity + Z-Ile-OSu411003-25G25 g$188.00 - Z-Ile-OSu-25g quantity + Add to cart Description Synonym: Z-L-isoleucine-N-hydroxysuccinimide ester CAS #: 3391-99-9 Molecular Formula: C18H22N2O6 Molecular Weight: 362.4