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Substance Name: Vitamin B 6
RN: 8059-24-3


  • VITAMIN B 6 refers to several PICOLINES (especially PYRIDOXINE; PYRIDOXAL; & PYRIDOXAMINE) that are efficiently converted by the body to PYRIDOXAL PHOSPHATE which is a coenzyme for synthesis of amino acids, neurotransmitters (serotonin, norepinephrine), sphingolipids, and aminolevulinic acid. During transamination of amino acids, pyridoxal phosphate is transiently converted into PYRIDOXAMINE phosphate. Although pyridoxine and Vitamin B 6 are still frequently used as synonyms, especially by medical researchers, this practice is erroneous and sometimes misleading (EE Snell; Ann NY Acad Sci, vol 585 pg 1, 1990). Most of vitamin B6 is eventually degraded to PYRIDOXIC ACID and excreted in the urine.

Molecular Formula

  • Unspecified

Molecular Weight

  • 231.143

Classification Codes

  • Growth Substances
  • Micronutrients
  • Vitamin B Complex
  • Vitamins
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Names and Synonyms

Name of Substance

  • Vitamin B 6

MeSH Heading

  • Vitamin B 6


  • Adermine
  • EINECS 232-503-8
  • Vitamin B6
  • Vitamin H

Systematic Name

  • Vitamin B6

Registry Numbers

CAS Registry Number

  • 8059-24-3

Other Registry Number

  • 12001-78-4

System Generated Number

  • 0008059243

Structure Descriptors