5-Dimethylbenzaldehyde-DNPH_Kain Industrial Additive

background and overview[1] the 2,4-dinitrophenylhydrazine (dnph) colorimetric method is a classic method for determining the carbonyl content of proteins. the oxidized protein carbonyl content increases, and the carbonyl group can react with 2,4-dinitrophenylhydrazine to form 2,4-dinitrophenylhydrazone, 2,4-dinitrophenylhydrazone is a reddish-brown precipitate. after dissolving the precipitate with guanidine hydrochloride, the absorbance value at 370nm can be…