3-硝基苯肼 (3-NPH)是一种衍生化试剂，用于含羧基 和羰基代谢产物的衍生化。该化合物也用作 高效的化学同位素标记试剂。此外，3-硝基苯肼 可与取代苯甲醛通过缩合反应 形成一系列10取代(E)-1-苯亚甲基-2-(3-硝基苯) 肼化合物。 3-Nitrophenylhydrazine (3-NPH) is a derivatizing reagent used for the derivatization of carboxyl- and carbonyl-containing metabolites. This compound is also used as a high-efficiency chemical isotope-labeling reagent. Additionally, 3-nitrophenylhydrazine undergoes a condensation reaction with substituted benzaldehydes resulting in the formation of a series of ten substituted (E)-1-benzylidene-2-(3-nitrophenyl) hydrazine compounds.