mPEG8-N3 Product Catalog # Size Price (USD) Quantity mPEG8-N3281104-500MG500 mg$450.00 - mPEG8-N3-500mg quantity + mPEG8-N3281104-1G1 g$678.00 - mPEG8-N3-1g quantity + Add to cart Description CAS #: 869718-80-9 Molecular Formula: C17H35N3O8 Molecular Weight: 409.5