2-[2-[4-[(2-cyanoethyl)methylamino]phenyl]vinyl]-1,3,3-trimethyl-3H-indolium sulphate;3H-Indolium, 2-[2-[4-[(2-cyanoethyl)methylamino] phenyl]ethenyl]-1,3,3-trimethyl-, sulfate (2:1)
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