NHS-PEG2-NHS Product Catalog # Size Price (USD) Quantity NHS-PEG2-NHS281901-1G1 g$430.00 - NHS-PEG2-NHS-1g quantity + NHS-PEG2-NHS281901-5G5 g$1,075.00 - NHS-PEG2-NHS-5g quantity + Add to cart Description Synonym: α, ω-Disuccinimidyl diethylene glycol CAS #: 1314378-16-9 Molecular Formula: C18H24N2O11 Molecular Weight: 444.4