英文别名tert-butyl 3-[2-(2-{2-[2-(toluene-4-sulfonyloxy)-ethoxy]ethoxy}ethoxy)ethoxy]propionate; tert-Butyl 1-(Tosyloxy)-3,6,9,12-tetraoxapentadecan-15-oate; Tos-PEG5-Boc; Tos-PEG5-COOtBu; 4,7,10,13-Tetraoxapentadecanoic acid, 15-[[(4-methylphenyl)sulfonyl]oxy]-, 1,1-dimethylethyl ester; Tos-PEG4-COOtBu 
