What is "perylene"

alt. (context organic compound English) A polycyclic aromatic hydrocarbon consisting of two molecules of naphthalene fused together; it is used in light-emitting diodes. n. (context organic compound English) A polycyclic aromatic hydrocarbon consisting of two molecules of naphthalene fused together; it is used in light-emitting diodes.

Perylene or perilene is a polycyclic aromatic hydrocarbon with the chemical formula CH, occurring as a brown solid. It or its derivatives may be carcinogenic, and it is considered to be a hazardous pollutant. In cell membrane cytochemistry, perylene is used as a fluorescent lipid probe. It is the parent compound of a class of rylene dyes.