Tags: Chemical Compound, Chemical Substance.
Terphenyls are a group of closely related aromatic hydrocarbons. Also known as diphenylbenzenes or triphenyls they consist of a central benzene ring substituted with two phenyl groups. The three isomers are ortho-terphenyl meta-terphenyl and para-terphenyl. Commercial grade terphenyl is generally a mixture of the three isomers.