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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 ]
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.
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.
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).
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]
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.
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They are also known as danger signals, and alarmins because they serve as warning signs to alert the organism to any damage or infection to its cells. DAMPs are endogenous danger signals that are discharged to the extracellular space in response to damage to the cell from mechanical trauma or a pathogen. [ 3 ]