N3-PEG4-NHS Product Catalog # Size Price (USD) Quantity N3-PEG4-NHS285101-100MG100 mg$100.00 - N3-PEG4-NHS-100mg quantity + N3-PEG4-NHS285101-500MG500 mg$300.00 - N3-PEG4-NHS-500mg quantity + N3-PEG4-NHS285101-1G1 g$450.00 - N3-PEG4-NHS-1g quantity + N3-PEG4-NHS285101-5G5 g$1,500.00 - N3-PEG4-NHS-5g quantity + Add to cart Description CAS #: 944251-24-5 Molecular Formula: C15H24N4O8 Molecular Weight: 388.4