This little guy is a benzene.

This one is called a tetrahydropyran.

If you take a benzene and a tetrahydropyran and fuse them together, you get a chromane (pronounced "crow-man").

If you oxidize the chromane, you get a chromanone ("crow-man-own").

If you draw primitive art on the wall of a cave around it, it's a Cro Magnon.

Chemistry and archaeology jokes: two great tastes that taste great together!