5,4-dihydroxyanthraquinone, 5,8-Di-x-toluidinoquinizarin, 1,4-dihydroxy-5,8-di-p-toluidino-anthraquinone, 5.8-Di-p-toluidino-1.4-dihydroy-anthrachinon, 1,4-Dihydroxy-5,8-di-p-toluidino-anthrachinon, 5.8-Di-p-toluidino-chinizarin
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