Also known as hydroxylizaric acid, purpurine, 1,2,4-trihydroxyanthraquinone, 1,2,4-Trihydroxyanthrachinon, 1,2,4-trihydroxy-9,10-anthracenedione, 1,2,4-trihydroxyanthra-9,10-quinone, 1,2,4-trihydroxy-9,10-anthraquinone
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1,2,4-Trihydroxyanthraquinone, commonly called purpurin, is an anthraquinone. It is a naturally occurring red/yellow dye. It is formally derived from 9,10-anthraquinone by replacement of three hydrogen atoms by hydroxyl (OH) groups.
Purpurin is also called verantin, smoke Brown G, hydroxylizaric acid, and C.I. 58205. It is a minor component of the classical lake pigment "madder lake" or Rose Madder.
1,2,4-Trihydroxyanthraquinone, commonly called purpurin, is an anthraquinone. It is a naturally occurring red/yellow dye. It is formally derived from 9,10-anthraquinone by replacement of three hydrogen atoms by hydroxyl (OH) groups.
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