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:
“The necessary has never been man’s top priority. The passionate pursuit of the nonessential and the extravagant is one of the chief traits of human uniqueness. Unlike other forms of life, man’s greatest exertions are made in the pursuit not of necessities but of superfluities.”
—Eric Hoffer (1902–1983)
“All forms of beauty, like all possible phenomena, contain an element of the eternal and an element of the transitory—of the absolute and of the particular. Absolute and eternal beauty does not exist, or rather it is only an abstraction creamed from the general surface of different beauties. The particular element in each manifestation comes from the emotions: and just as we have our own particular emotions, so we have our own beauty.”
—Charles Baudelaire (1821–1867)
“Media mystifications should not obfuscate a simple, perceivable fact; Black teenage girls do not create poverty by having babies. Quite the contrary, they have babies at such a young age precisely because they are poor—because they do not have the opportunity to acquire an education, because meaningful, well-paying jobs and creative forms of recreation are not accessible to them ... because safe, effective forms of contraception are not available to them.”
—Angela Davis (b. 1944)