mPEG3-Hydrazide Product Catalog # Size Price (USD) Quantity mPEG3-Hydrazide283801-1G1 g$399.00 - mPEG3-Hydrazide-1g quantity + mPEG3-Hydrazide283801-5G5 g$1,325.00 - mPEG3-Hydrazide-5g quantity + Add to cart Description CAS #: 1449390-68-4 Molecular Formula: C10H22N2O5 Molecular Weight: 250.3