NHS-PEG6-NHS Product Catalog # Size Price (USD) Quantity NHS-PEG6-NHS281904-1G1 g$510.00 - NHS-PEG6-NHS-1g quantity + NHS-PEG6-NHS281904-5G5 g$1,287.00 - NHS-PEG6-NHS-5g quantity + Add to cart Description Synonym: α, ω-Disuccinimidyl hexaethylene glycol CAS #: 1334170-02-3 Molecular Formula: C26H40N2O15 Molecular Weight: 620.6