a clear, colorless, viscous, poisonous liquid, C 7 H 5 N, used chiefly as an intermediate in organic synthesis.
a crystalline, water-insoluble ketone, C 13 H 10 O, used in organic synthesis. noun a white sweet-smelling crystalline solid used mainly in the manufacture of organic compounds and in perfume. Formula: C6H5COC6H5 Also called diphenylketone benzophenone (běn’zō-fĭ-nōn’, -fē’nōn) A white crystalline compound used in perfumes to prevent evaporation and in the manufacture of insecticides. Benzophenone […]
a yellow, crystalline aromatic carcinogenic hydrocarbon, C 20 H 12 , consisting of five fused benzene rings, produced by incomplete combustion of organic material, as coal, petroleum, or tobacco.
noun a yellow crystalline water-soluble unsaturated ketone manufactured from aniline and used in the production of dyestuffs. Formula: C6H4O2 Also called quinone Systematic name cyclohexadiene-1,4-quinone Historical Examples Coal Raphael Meldola