Products › Poly(2-ethyl-2-oxazoline), NHS ester, Mn 3,000, PDI ≤1.2 Image 1 of 1 Poly(2-ethyl-2-oxazoline), NHS ester, Mn 3,000, PDI ≤1.2 $159.00 SKU: E5001-1 GPack size: 1 GLinear Formula: CH3(C5H9NO)nNHCOCH2CH2CH2COOSuCertificate of Analysis (COA) included. Quantity: Add To Cart Added! SKU: E5001-1 GPack size: 1 GLinear Formula: CH3(C5H9NO)nNHCOCH2CH2CH2COOSuCertificate of Analysis (COA) included.