N-(PEG1-OH)-N-Boc-PEG2-propargyl H-PEG8-Ts InChi: InChI=1S/C47H52N4O7/c1-30(50(2)47(57)58-29-38-36-25-14-12-23-34(36)35-24-13-15-26-37(35)38)43(52)48-41(33-21-10-5-11-22-33)45(54)51-28-16-27-39(51)44(53)49-42(46(55)56)40(31-17-6-3-7-18-31)32-19-8-4-9-20-32/h3-4
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