SCHEMBL16353829AKOS009003727HO-PEG-COOHHO-PEG-AAHO-PEG-acidHO-PEG-A Aaverage Mw3400HO-PEG-A Aaverage Mw10000HO-PEG-COOH average Mw5000HO-PEG-COOH average Mw2000HO-PEG-COOH average Mw4000HO-PEG-COOH average Mw1000alpha-Hydroxy-omega-carboxy poly(ethylene glycol) (PEG-MW 5.000 Dalton)