Synonyms: 9,10-Anthracenedione,1,8-dihydroxy-3-(hydroxymethyl)-2,4,5,7-tetranitro- (9CI); Anthraquinone,1,8-dihydroxy-3-(hydroxymethyl)-2,4,5,7-tetranitro- (8CI);1,3,6,8-Tetranitro-4,5-dihydroxy-2-hydroxymethylanthraquinone; Aloe purple;Aloetic acid; Aloetinic acid; Polychromic acid