Purpurogallin carboxylic acid ide-amino-PEG3-NH2 hydrochloride InChi: InChI=1S/C22H30N6O4S/c1-5-7-17-19-20(27(4)25-17)22(29)24-21(23-19)16-14-15(8-9-18(16)32-6-2)33(30
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