2,4-dinitrophenylhydrazine (2,4-dnph)
chemistry
Written & reviewed by James Millett — Biology (Imperial College London), PGCE Science (University of Cambridge).
2,4-dinitrophenylhydrazine (2,4-DNPH): a reagent that reacts with all carbonyl compounds (aldehydes and ketones) to produce an orange/yellow precipitate, confirming the presence of a C=O group