2,4-dinitrophenylhydrazine

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2,4-dinitrophenylhydrazine

[¦tü ¦fȯr dī¦nī·trō‚fen·əl′hī·drə‚zēn]
(organic chemistry)
(NO2)2C6H3-NHNH2 A red, crystalline powder with a melting point of approximately 200°C; soluble in dilute inorganic acids; used as a reagent for determination of ketones and aldehydes.
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The chemical, which is also known as Brady's reagent, is a chemical used to identify whether unknown compounds contain carbonyl compounds.