mPEG2-NH2 Product Catalog # Size Price (USD) Quantity mPEG2-NH2281211-5G5 g$341.00 - mPEG2-NH2-5g quantity + mPEG2-NH2281211-25G25 g$926.00 - mPEG2-NH2-25g quantity + Add to cart Description Synonym: 2-(2-methoxyethoxy)ethanamine CAS #: 31576-51-9 Molecular Formula: C5H13NO2 Molecular Weight: 119.2