英文别名Bis-PEG1-acid; 3,3'-Oxybis[propanoic acid]; 3,3'-Oxydipropionic acid; Bis(2-carboxyethyl) ether; 3-(2-carboxyethoxy)propanoic acid; Propanoic acid, 3,3'-oxybis-; 3-(2-carboxyethyloxy)propanoic acid; 3-(2-carboxyethoxy)propionic acid; 4-oxa-heptanedioic acid; 4-oxa-1,7-heptanedioic acid; 4-Oxaheptandisaure 
