propyl radical vs propyl

propyl radical and propyl both are nouns.

Word	Noun	Adjective	Verb	Adverb
propyl radical	Yes	No	No	No
propyl	Yes	No	No	No

As nouns, propyl radical and propyl are synonyms defined as:

propyl radical and propyl: the monovalent organic group C3H7- obtained from propane

Other synonyms of propyl radical include propyl group.

propyl radical (noun)	propyl (noun)
the monovalent organic group C3H7- obtained from propane	the monovalent organic group C3H7- obtained from propane