mPEG4-Hydrazide Product Catalog # Size Price (USD) Quantity mPEG4-Hydrazide283802-1G1 g$460.00 - mPEG4-Hydrazide-1g quantity + mPEG4-Hydrazide283802-5G5 g$1,516.00 - mPEG4-Hydrazide-5g quantity + Add to cart Description CAS #: 1449390-65-1 Molecular Formula: C12H26N2O6 Molecular Weight: 294.3