pyridoxal vs pyridoxine

pyridoxal and pyridoxine both are nouns.

Word	Noun	Adjective	Verb	Adverb
pyridoxal	Yes	No	No	No
pyridoxine	Yes	No	No	No

As nouns, pyridoxal and pyridoxine are synonyms defined as:

pyridoxal and pyridoxine: a B vitamin that is essential for metabolism of amino acids and starch

Other synonyms of pyridoxal include adermin, pyridoxamine, vitamin B6.

pyridoxal (noun)	pyridoxine (noun)
a B vitamin that is essential for metabolism of amino acids and starch	a B vitamin that is essential for metabolism of amino acids and starch