Vitamin B6 - Forms

Forms

Seven forms of this vitamin are known:

  • Pyridoxine (PN), the form that is most commonly given as vitamin B6 supplement
  • Pyridoxine 5'-phosphate (PNP)
  • Pyridoxal (PL)
  • Pyridoxal 5'-phosphate (PLP), the metabolically active form (sold as 'P-5-P' vitamin supplement)
  • Pyridoxamine (PM)
  • Pyridoxamine 5'-phosphate (PMP)
  • 4-Pyridoxic acid (PA), the catabolite which is excreted in the urine

All forms except PA can be interconverted.

Read more about this topic:  Vitamin B6

Famous quotes containing the word forms:

    “I am not so foolish as to declaim against forms. Forms are as essential as bodies; but to exalt particular forms, to adhere to one form a moment after it is outgrown, is unreasonable, and it is alien to the spirit of Christ.”
    —Ralph Waldo Emerson (1803–1882)

    “And what avails it that science has come to treat space and time as simply forms of thought, and the material world as hypothetical, and withal our pretension of property and even of self-hood are fading with the rest, if, at last, even our thoughts are not finalities, but the incessant flowing and ascension reach these also, and each thought which yesterday was a finality, to-day is yielding to a larger generalization?”
    —Ralph Waldo Emerson (1803–1882)

    “The sun, that brave man,
    Comes through boughs that lie in wait,
    That brave man.
    Green and gloomy eyes
    In dark forms of the grass
    Run away.”
    —Wallace Stevens (1879–1955)