ellipsene
An ellipsene is a polycyclic aromatic hydrocarbon consisting of five fused benzene rings arranged in an elliptical shape. Its chemical formula is C22H14. It is part of a class of compounds known as polycyclic aromatic hydrocarbons, or PAHs, which are characterized by their planar structures of fused aromatic rings. The structure of ellipsene can be visualized as a central benzene ring fused to four other benzene rings in a specific alternating pattern, leading to its distinctive, somewhat elongated form.
Ellipsene is a solid at room temperature. Like many PAHs, it is relatively insoluble in water but