(E)-2-Chloro-4-hydroxy-9-(3-dimethylaminopropylidene)thioxanthene hydrogen maleate (E)-2-Chloro-9-(3-(dimethylamino)propylidene)-9H-thioxanthen-4-ol maleate 77602-71-2 9H-Thioxanthen-4-ol, 2-chloro-9-(3-(dimethylamino)propylidene)-, (E)-, (Z)-2-butenedioate (1:1) VUFB-13724