coumarone vs benzofuran

coumarone and benzofuran both are nouns.

Word	Noun	Adjective	Verb	Adverb
coumarone	Yes	No	No	No
benzofuran	Yes	No	No	No

As nouns, coumarone and benzofuran are synonyms defined as:

coumarone and benzofuran: a colorless oily compound extracted from coal tar and used in manufacturing synthetic resins

Other synonyms of coumarone include cumarone.

coumarone (noun)	benzofuran (noun)
a colorless oily compound extracted from coal tar and used in manufacturing synthetic resins	a colorless oily compound extracted from coal tar and used in manufacturing synthetic resins