Synonyms: 1,4-Naphthoquinone,6-ethyl-5,8-dihydroxy-2,3,7-trimethoxy- (8CI); Naphthazarin,6-ethyl-2,3,7-trimethoxy- (6CI);5,8-Dihydroxy-2,3,6-trimethoxy-7-ethyl-1,4-naphthoquinone;6-Ethyl-2,3,7-trimethoxynaphthazarin; Trimethoxyechinochrome A;Trimethylechinochrome A