benzoate of soda vs sodium benzoate

benzoate of soda and sodium benzoate both are nouns.

Word	Noun	Adjective	Verb	Adverb
benzoate of soda	Yes	No	No	No
sodium benzoate	Yes	No	No	No

As nouns, benzoate of soda and sodium benzoate are synonyms defined as:

benzoate of soda and sodium benzoate: a white crystalline salt used as a food preservative and antiseptic

benzoate of soda (noun)	sodium benzoate (noun)
a white crystalline salt used as a food preservative and antiseptic	a white crystalline salt used as a food preservative and antiseptic