indene

A colorless organic liquid, C₉H₈, obtained from coal tar and used in preparing synthetic resins.

A colorless viscid liquid, , found in coal-tar oil. It boils at 179.5–180.5° C.

The bicyclic hydrocarbon consisting of a benzene ring fused to one of cyclopentadiene.

a colorless liquid hydrocarbon extracted from petroleum or coal tar and used in making synthetic resins