A pyridoxine metabolite
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4-Pyridoxic Acid

Item No. 33968

Product Insert (PDF)Safety Data Sheet (SDS) (PDF)
Technical Information
Formal Name
3-hydroxy-5-(hydroxymethyl)-2-methyl-4-pyridinecarboxylic acid
CAS Number
82-82-6
Synonyms
  • NSC 41814
Molecular Formula
C8H9NO4
Formula Weight
183.2
Purity
≥98%
Formulation (Request formulation change)
A solid
Solubility(Learn about Variance in Solubility)
Aqueous acid: 10 mg/ml
λmax
213, 323 nm
SMILES
O=C(C1=C(C(C)=NC=C1CO)O)O
InChi Code
InChI=1S/C8H9NO4/c1-4-7(11)6(8(12)13)5(3-10)2-9-4/h2,10-11H,3H2,1H3,(H,12,13)
InChi Key
HXACOUQIXZGNBF-UHFFFAOYSA-N
Shipping & Storage Information
Storage
-20°C
Shipping
Room temperature in continental US; may vary elsewhere
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Certificates of Analysis & Batch Specific Data

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    25 mg

    $36

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    50 mg

    $68

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    100 mg

    $103

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    250 mg

    $186

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    Product Description

    4-Pyridoxic acid is an inactive metabolite of pyridoxine (Item No. 20706).1 It is formed from pyridoxine via pyridoxal 5'-phosphate and pyridoxal intermediates by pyridoxine kinase or pyridoxamine phosphate oxidase, as well as pyridoxine-5'-phosphate oxidase, aldehyde dehydrogenase, or aldehyde oxidase.2

    WARNING This product is not for human or veterinary use.

    References & Product Citations
    Product Description References

    1. Sharma, S.K., and Dakshinamurti, K. Determination of vitamin B6 vitamers and pyridoxic acid in biological samples. J. Chromatogr. 578(1), 45-51 (1992).

    2. Kohlmeier, M. Water-soluble vitamins and nonnutrients. Nutrient metabolism 567-671 (2015).