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.
References in periodicals archive ?
The chemical, which is also known as Brady's reagent, is a chemical used to identify whether unknown compounds contain carbonyl compounds.
Sodium hydroxide, acetic acid, methanol, 2,4-dinitrophenylhydrazine (Brady's reagent, DNP), potassium iodide, ethyl acetate, hydrochloric acid, acetic anhydride, glacial acetic acid, perchloric acid, potassium hydrogen phthalate and Oracet blue indicator, Dragendorff's reagent and vanillin/sulphuric acid reagent were obtained from the Chemical Store of the Departments of Pharmaceutics and Pharmaceutical Chemistry, Faculty of Pharmacy and Pharmaceutical Sciences, KNUST, Ghana.
The solution was filtered and a few drops of 2,4 dinitrophenylhydrazine solution (Brady's reagent) was added and shaken.