but-2-enedioic acid; 3-[2-(methylaminomethyl)phenyl]sulfanylphenol;3-((2-((Methylamino)methyl)phenyl)thio)phenol (Z)-2-butenedioate (1:1) (salt);Phenol, 3-((2-((methylamino)methyl)phenyl)thio)-, (Z)-2-butenedioate (1:1) (salt);
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