beta-naphthol vs antioxidant

beta-naphthol and antioxidant both are nouns.

Word	Noun	Adjective	Verb	Adverb
beta-naphthol	Yes	No	No	No
antioxidant	Yes	No	No	No

As nouns, antioxidant is a hypernym of beta-naphthol; that is, antioxidant is a word with a broader meaning than beta-naphthol:

beta-naphthol: an isomer of naphthol used in rubber as an antioxidant
antioxidant: substance that inhibits oxidation or inhibits reactions promoted by oxygen or peroxides

Other hypernyms of beta-naphthol include naphthol.

beta-naphthol (noun)	antioxidant (noun)
an isomer of naphthol used in rubber as an antioxidant	substance that inhibits oxidation or inhibits reactions promoted by oxygen or peroxides