Anthraquinone

Japanese: アントラキノン
Anthraquinone

C 14 H 8 O 2 (208.22). In the broad sense, it refers to quinone derived from anthracene, and there are three isomers, 1,2-, 1,4-, and 9,10-anthraquinone, but it usually refers to 9,10-anthracenedione. It is produced by oxidizing anthracene, or by dehydrating and cyclizing o -benzoylbenzoic acid obtained by Friedel-Crafts condensation of phthalic anhydride and benzene. Pale yellow crystals. Melting point 286 °C, boiling point 382 °C. Sublimable. Dissolves in benzene, toluene, etc. when heated. When reduced, it produces anthrahydroquinone, anthrone, or anthracene, depending on the type of reducing agent. Anthraquinone is the parent compound of so-called anthraquinone dyes, and acid dyes and vat dyes are synthesized through various derivatives such as quinizarin, aminoanthraquinone, and benzoanthrone. LD50 3500 mg/kg (rat, intraperitoneal). [CAS 84-65-1]

Source: Morikita Publishing "Chemical Dictionary (2nd Edition)" Information about the Chemical Dictionary 2nd Edition

Japanese:

C14H8O2(208.22).広義では,アントラセンから誘導されるキノンをいい,1,2-,1,4-および9,10-アントラキノンの三つの異性体があるが,普通,9,10-アントラキノン(9,10-anthracenedione)をさす.アントラセンを酸化するか,無水フタル酸とベンゼンとのフリーデル-クラフツ縮合によって得られるo-ベンゾイル安息香酸を脱水閉環して製造される.淡黄色の結晶.融点286 ℃,沸点382 ℃.昇華性.ベンゼン,トルエンなどに熱時溶ける.還元すれば還元剤の種類によって,アントラヒドロキノン,アントロン,あるいはアントラセンを生じる.アントラキノンはいわゆるアントラキノン系染料の母体化合物で,キニザリン,アミノアントラキノン,ベンゾアントロンなど種々の誘導体を経て酸性染料,建染め染料が合成される.LD50 3500 mg/kg(ラット,腹腔内).[CAS 84-65-1]

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