FA-PEG-COOH (MW 10000)

FA-PEG-COOH (MW 10000) (Folate-PEG-COOH (MW 10000) ) is a PEG derivative modified with folic acid, featuring carboxyl groups (-COOH) . These groups readily form stable amide bonds with amino groups or ester bonds with hydroxyl groups. Folic acid (-FA) shows high affinity to folate receptors on cell membranes, making it suitable for targeted drug delivery.