英文同义词
Bis-PEG3-COOH;3,3'-[oxybis(ethane-2,1-diyloxy)]dipropanoic acid;Bis-PEG3-acid;3,3'-((Oxybis(ethane-2,1-diyl))bis(oxy))dipropanoic acid;COOH-PEG2-COOH;4,7,10-trioxa-tridecanedioic acid;HOOCCH2CH2O-PEG2-CH2CH2COOH;Propanoic acid, 3,3'-[oxybis(2,1-ethanediyloxy)]bis-