riboflavin vs vitamin B2

riboflavin and vitamin B2 both are nouns.

Word	Noun	Adjective	Verb	Adverb
riboflavin	Yes	No	No	No
vitamin B2	Yes	No	No	No

As nouns, riboflavin and vitamin B2 are synonyms defined as:

riboflavin and vitamin B2: a B vitamin that prevents skin lesions and weight loss

Other synonyms of riboflavin include hepatoflavin, lactoflavin, ovoflavin, vitamin G.

riboflavin (noun)	vitamin B2 (noun)
a B vitamin that prevents skin lesions and weight loss	a B vitamin that prevents skin lesions and weight loss