mPEG12-Hydrazide Product Catalog # Size Price (USD) Quantity mPEG12-Hydrazide283806-1G1 g$879.00 - mPEG12-Hydrazide-1g quantity + mPEG12-Hydrazide283806-5G5 g$2,979.00 - mPEG12-Hydrazide-5g quantity + Add to cart Description Molecular Formula: C28H58N2O14 Molecular Weight: 646.8