英文别名Acid-C2-PEG4-C2-NHS ester; 19-[(2,5-Dioxo-1-pyrrolidinyl)oxy]-19-oxo-4,7,10,13,16-pentaoxanonadecan-1-oic acid; Acid-PEG5-NHS ester; COOH-PEG5-NHS; COOH-PEG5-SPA; Acid-dPEG5-NHS ester; 3-[2-[2-[2-[2-[3-(2,5-dioxopyrrolidin-1-yl)oxy-3-oxopropoxy]ethoxy]ethoxy]ethoxy]ethoxy]propanoic acid; 4,7,10,13,16-Pentaoxanonadecanedioic acid, 1-(2,5-dioxo-1-pyrrolidinyl) ester