Chem. Also 9 kinone. [f. QUIN-A + -ONE.] a. spec. A crystalline compound (benzoquinone, C6H4O2), the simplest type of the class of quinones. b. Any one of a series of aromatic compounds derived from the benzene series of hydrocarbons when two hydrogen atoms are replaced by two of oxygen.
‘Quinone was first obtained, in 1838, by Woskresensky’ (Thorpe, Dict. Appl. Chem., III. 338); see QUINOYL.
1853. Stenhouse, in Pharmar. Jrnl., XIII. 384. The kinone was … obtained in crystals from the coffee-bean.
1857. Miller, Elem. Chem., III. 353. When kinone [1862 quinone] is treated with reducing agents.
1885. Remsen, Org. Chem., 306. The quinones are peculiar bodies which in some ways are allied to the ketones.
Comb. 1886. Roscoe & Schorlemmer, Treat. Chem., III. III. § 1006. A sharp taste and a weak quinone-like odour.
