Vitamin B6 (VB6) consists of six interconvertible pyridine compounds,
which are termed “vitamers” and include pyridoxine (PN),
pyridoxamine (PM), pyridoxal (PL) and their phosphorylated derivatives,
pyridoxine 50-phosphate (PNP), pyridoxamine 50-phosphate
(PMP) and pyridoxal 50-phosphate (PLP).