2,4-Dinitrophenylhydrazine (DNPH, Brady's reagent) is the chemical compound C6H3(NO2)2NHNH2. Dinitrophenylhydrazine is a red to orange solid.
D 2207 (OTTO) 2,4-Dinitrophenylhydrazine, GR 99% Cas 119-26-6 - used to qualitatively test for carbonyl groups associated with aldehydes and ketones.