PC DBCO-PEG4-NHS ester 22814 InChi: InChI=1S/C22H27ClN6O/c1-15-24-21(28-11-9-27(2)10-12-28)19-22(25-15)29(16-7-13-30-14-8-16)20(26-19)17-5-3-4-6-18(17)23/h3-6
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