mPEG16-SH Product Catalog # Size Price (USD) Quantity mPEG16-SH281511-250MG250 mg$607.00 - mPEG16-SH-250mg quantity + mPEG16-SH281511-1G1 g$1,510.00 - mPEG16-SH-1g quantity + Add to cart Description CAS #: 874820-38-9 Molecular Formula: C33H68O16S Molecular Weight: 752.9