英文别名Thio-PEG2-t-butyl ester; Propanoic acid, 3-[2-(2-mercaptoethoxy)ethoxy]-, 1,1-dimethylethyl ester; 2-Methyl-2-propanyl 3-[2-(2-sulfanylethoxy)ethoxy]propanoate; tert-Butyl 3-[2-(2-sulfanylethoxy)ethoxy]propanoate; HS-PEG2-CH2CH2COOtBu; SH-PEG2-CH2CH2COOtBu; HS-PEG2-COOtBu