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The unqualified term "dihydroxyanthraquinone" usually means a hydroxy derivative of 9,10-anthraquinone.The dihydroxy-9,10-anthraquinone functional group occurs widely in natural products, [3] [4] [5] and is an important feature of the anthracycline antitumour antibiotics.
Dantron , also known as chrysazin or 1,8-dihydroxyanthraquinone, is an orange-colored organic substance. Many structurally-related compounds are known. [ 1 ] In terms of its molecular structure, it is related anthraquinone by the replacement of two hydrogen atoms by hydroxyl groups (–OH).
1,4-Dihydroxyanthraquinone, also called quinizarin or Solvent Orange 86, is an organic compound derived from anthroquinone. Quinizarin is an orange or red-brown crystalline powder. It is formally derived from anthraquinone by replacement of two hydrogen atoms by hydroxyl (OH) groups.
1,5-Dihydroxyanthraquinone is an organic compound with the formula (C 6 H 3 OH) 2 (CO) 2. It is one of several isomers of dihydroxyanthraquinone . An orange solid, it is a component of traditional Chinese medications. [ 3 ]
1,4-Dihydroxyanthraquinone, commonly called quinizarin is a common hydroxyanthroquinone. [1] [2] In organic chemistry hydroxyanthraquinones refers to compounds with the formula C 12 H 8-n (OH) n (CO) 2 where n ≥ 1. Almost all hydroxyanthraquinones are derivative of 9,10-anthraquinone. [3] [4] [5]
Alizarin (also known as 1,2-dihydroxyanthraquinone, Mordant Red 11, C.I. 58000, and Turkey Red [2]) is an organic compound with formula C 14 H 8 O 4 that has been used throughout history as a red dye, principally for dyeing textile fabrics. Historically it was derived from the roots of plants of the madder genus. [3]
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1,3-Dihydroxyanthraquinone, also called purpuroxanthin or xanthopurpurin, is an organic compound with formula C 14 H 8 O 4 that occurs in the plant Rubia cordifolia (Indian madder). [1] It is one of ten dihydroxyanthraquinone isomers.