mPEG4-N3 Product Catalog # Size Price (USD) Quantity mPEG4-N3281103-500MG500 mg$400.00 - mPEG4-N3-500mg quantity + mPEG4-N3281103-1G1 g$600.00 - mPEG4-N3-1g quantity + Add to cart Description CAS #: 606130-90-9 Molecular Formula: C9H19N3O4 Molecular Weight: 233.3