a naturally occurring derivative of pyridoxine that is a precursor of a coenzyme (pyridoxal phosphate) involved in several enzymic reactions. Formula: (CH2OH)(CHO)C5HN(OH)(CH3)
pyridoxal in American English
(ˌpɪrəˈdɑksəl)
noun
an aldehyde, C8H9NO3, closely related to vitamin B6 and exhibiting vitamin activity