title: 2,4-dinitrophenylhydrazine: a sensitive quantitative reagent for determining microgram quantities of prednisone.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D003124:Colorimetry; D004140:Dinitrophenols; D006834:Hydrazines; D007202:Indicators and Reagents; D007538:Isoniazid; D011241:Prednisone / Q000032:analysis* / Q000302:isolation & purification; D013053:Spectrophotometry; D013778:Tetrazolium Salts; D014466:Ultraviolet Rays
chemical_list: D004140:Dinitrophenols; D006834:Hydrazines; D007202:Indicators and Reagents; D013778:Tetrazolium Salts; D007538:Isoniazid; D011241:Prednisone