vitamin B1 vs thiamin

vitamin B1 and thiamin both are nouns.

Word	Noun	Adjective	Verb	Adverb
vitamin B1	Yes	No	No	No
thiamin	Yes	No	No	No

As nouns, vitamin B1 and thiamin are synonyms defined as:

vitamin B1 and thiamin: a B vitamin that prevents beriberi; maintains appetite and growth

Other synonyms of vitamin B1 include aneurin, antiberiberi factor, thiamine.

vitamin B1 (noun)	thiamin (noun)
a B vitamin that prevents beriberi; maintains appetite and growth	a B vitamin that prevents beriberi; maintains appetite and growth