Chem. [f. STYR-AX + -ONE.] An alcohol in crystalline form obtained from the decomposition of styracin; used as an antiseptic and a bleaching agent.

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1852.  W. Gregory, Handbk. Org. Chem. (ed. 3), 296. The hydrated oxide of styryle, called also styrone, exists in two forms, as an oil and in a crystalline form.

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1883–4.  Medical Ann., 6/1. Styrone … one of the most powerful antiseptics known.

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1893.  W. R. Dawson, trans. Schenk’s Man. Bacteriol., 224. Styrone, glycol, or equal parts of glycerine and ether are used as bleaching agents.

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