[¦hek·sə¦nī·trō·dī′fen·əl ′am‚ēn] (organic chemistry) (NO2)3C6H2NHC6H2(NO2)3 Explosive, yellow solid melting at 238-244°C; insoluble in water, ether, alcohol, or benzene; soluble in alkalies and acetic and nitric acids; used as an explosive and in potassium analysis.