英文别名Mal-PEG4-OH; Mal-PEG4-alcohol; 1-[2-[2-[2-(2-hydroxyethoxy)ethoxy]ethoxy]ethyl]pyrrole-2,5-dione; Mal-PEG4; 1H-Pyrrole-2,5-dione, 1-[2-[2-[2-(2-hydroxyethoxy)ethoxy]ethoxy]ethyl]-; 1-(2-{2-[2-(2-hydroxyethoxy)ethoxy]ethoxy}ethyl)-2,5-dihydro-1H-pyrrole-2,5-dione