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HomeProduct name list4-Pyridoxic acid

4-Pyridoxic acid

Synonym(s):2-Methyl-3-hydroxy-4-carboxy-5-hydroxymethylpyridine;3-Hydroxy-5-(hydroxymethyl)-2-methyl-4-pyridinecarboxylic acid

  • CAS NO.:82-82-6
  • Empirical Formula: C8H9NO4
  • Molecular Weight: 183.16
  • MDL number: MFCD00006334
  • EINECS: 201-440-8
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-08-13 17:19:14
4-Pyridoxic acid Structural

What is 4-Pyridoxic acid?

The Uses of 4-Pyridoxic acid

4-Pyridoxic Acid, a catabolite of vitamin B6 (P991735), is a water-soluble B-group vitamin that can be used as a urinary diagnostic biomarker for determining the nutritional status of these vitamins.

What are the applications of Application

4-Pyridoxic acid is a catabolite of vitamin B6

Definition

ChEBI: 4-pyridoxic acid is a methylpyridine that is 2-methylpyridine substituted by a hydroxy group at C-3, a carboxy group at C-4, and a hydroxymethyl group at C-5. It is the catabolic product of vitamin B6 and is excreted in the urine. It has a role as a mouse metabolite and a human urinary metabolite. It is a member of methylpyridines, a hydroxymethylpyridine, a monohydroxypyridine and a vitamin B6. It is functionally related to an isonicotinic acid. It is a conjugate acid of a 4-pyridoxate.

Synthesis Reference(s)

Journal of Heterocyclic Chemistry, 4, p. 625, 1967 DOI: 10.1002/jhet.5570040427

Enzyme inhibitor

This oxidized derivative (FW = 171.15 g/mol) of pyridoxal is the chief catabolic product of pyridoxine, pyridoxal, and pyridoxamine degradation; it can be isolated from human urine. The carboxyl group has a pKa value of 5.50 while the phenolic OH has a value of 9.75. 4-Pyridoxic acid has a blue fluorescence which is maximal between pH 3 and 4. Heating 4-pyridoxic acid in 0.5 N acid will convert the metabolite to its lactone, which has an even stronger fluorescence. Target(s): dextransucrase; glucose dehydrogenase; pyridoxal dehydrogenase; and pyridoxaminephosphate oxidase.

Properties of 4-Pyridoxic acid

Melting point: 258-261 °C (dec.) (lit.)
Boiling point: 584.5±50.0 °C(Predicted)
Density  1.480±0.06 g/cm3(Predicted)
storage temp.  -20°C
solubility  Aqueous Base (Slightly), Water (Very Slightly)
form  Solid
pka 0.47±0.25(Predicted)
color  Pale Beige to Light Brown
Merck  13,8071
Stability: Hygroscopic

Safety information for 4-Pyridoxic acid

Signal word Warning
Pictogram(s)
ghs
Exclamation Mark
Irritant
GHS07
GHS Hazard Statements H315:Skin corrosion/irritation
H319:Serious eye damage/eye irritation
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes P261:Avoid breathing dust/fume/gas/mist/vapours/spray.
P264:Wash hands thoroughly after handling.
P264:Wash skin thouroughly after handling.
P271:Use only outdoors or in a well-ventilated area.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352:IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Computed Descriptors for 4-Pyridoxic acid

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