2,3-Dihydro-1,4-dihydroxy-5,8-dimethylamino-9,10-anthracenedione 5,8-Dimethylaminoleucoquinizarin 9,10-Anthracenedione, 2,3-dihydro-1,4-dihydroxy-5,8-dimethylamino- CB0300000 Leuco-1,4-dihydroxy-5,8-dimethylamino-9,10-anthraquinone