Products › Poly(2-ethyl-2-oxazoline), NHS ester, Mn 10,000, PDI ≤1.2 Image 1 of 1 Poly(2-ethyl-2-oxazoline), NHS ester, Mn 10,000, PDI ≤1.2 $159.00 sold out SKU: E5004-1 GPack size: 1 GLinear Formula: CH3(C5H9NO)nNHCOCH2CH2CH2COOSuCertificate of Analysis (COA) included. Sold Out Added! SKU: E5004-1 GPack size: 1 GLinear Formula: CH3(C5H9NO)nNHCOCH2CH2CH2COOSuCertificate of Analysis (COA) included.