C10H8

Naphthalene Naph"tha*lene, n. (Chem.) A white crystalline aromatic hydrocarbon, {C10H8}, analogous to benzene, and obtained by the distillation of certain bituminous materials, such as the heavy oil of coal tar. It is the type and basis of a large number of derivatives among organic compounds. Formerly called also {naphthaline}. [1913 Webster]

{Naphthalene red} (Chem.), a dyestuff obtained from certain diazo derivatives of naphthylamine, and called also {magdala red}.

{Naphthalene yellow} (Chem.), a yellow dyestuff obtained from certain nitro derivatives of naphthol. [1913 Webster]