noun. Any of six isomeric aromatic compounds C6H3OH(NO2)2 formed by the nitration of phenol; they are metabolic poisons

"This compound is then decomposed by ammonia, dinitrophenylhydrazoate being formed, which on hydrolysis with alcoholic potash gives potassium hydrazoate (azide) and dinitrophenol."

acetanilide  amines  aromatics  chargev  chlorodinitrobenzene