4-Pyridoxic acid
- CAS No.
- 82-82-6
- Chemical Name:
- 4-Pyridoxic acid
- Synonyms
- 4-Pyridoxic;Pyridoxic Acid;4-PYRIDOXIC ACID;4-pyridoxinicacid;4-pyridoxinsaeure;4-pyridoxylicacid;4-Pyridoxic acid >=98%;Vitamin B6 Impurity 49;4-Pyridoxic Acid in DMSO;Noradrenaline Impurity 17
- CBNumber:
- CB6151957
- Molecular Formula:
- C8H9NO4
- Molecular Weight:
- 183.16
- MDL Number:
- MFCD00006334
- MOL File:
- 82-82-6.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Product description | Number | Pack Size | Price |
| 4-Pyridoxic acid ≥98% | P9630 | 25mg | $58.6 |
| 4-Pyridoxic acid ≥98% | P9630 | 100mg | $148 |
| 4-Pyridoxic acid | P991875 | 1g | $605 |
| 4-PYRIDOXIC ACID 95.00% | CHM0026551 | 100MG | $649.31 |
| 4-PYRIDOXIC ACID 95.00% | CHM0026551 | 500MG | $902.9 |
| More product size | |||
| 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) |
| pka | 0.47±0.25(Predicted) |
| form | Solid |
| color | Pale Beige to Light Brown |
| Merck | 13,8071 |
| Stability | Hygroscopic |
| 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) |
| InChIKey | HXACOUQIXZGNBF-UHFFFAOYSA-N |
| SMILES | Cc1ncc(CO)c(C(O)=O)c1O |
| FDA UNII | 5K18793O8D |
| UNSPSC Code | 12352100 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P261-P264-P271-P280-P302+P352-P305+P351+P338 | |||||||||
| target organs | Respiratory system | |||||||||
| PPE | dust mask type N95 (US), Eyeshields, Gloves | |||||||||
| Hazard Codes | Xi | |||||||||
| Risk Statements | 36/37/38 | |||||||||
| Safety Statements | 26-36 | |||||||||
| WGK Germany | 2 | |||||||||
| RTECS | NS1800000 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| Hazard Classifications | Eye Irrit. 2 Skin Irrit. 2 STOT SE 3 |
|||||||||
| NFPA 704 |
|
4-Pyridoxic acid price More Price(13)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | P9630 | 4-Pyridoxic acid ≥98% | 82-82-6 | 25mg | $58.6 | 2026-03-19 | Buy |
| Sigma-Aldrich | P9630 | 4-Pyridoxic acid ≥98% | 82-82-6 | 100mg | $148 | 2026-03-19 | Buy |
| TRC | P991875 | 4-Pyridoxic acid | 82-82-6 | 1g | $605 | 2021-12-16 | Buy |
| American Custom Chemicals Corporation | CHM0026551 | 4-PYRIDOXIC ACID 95.00% | 82-82-6 | 100MG | $649.31 | 2021-12-16 | Buy |
| American Custom Chemicals Corporation | CHM0026551 | 4-PYRIDOXIC ACID 95.00% | 82-82-6 | 500MG | $902.9 | 2021-12-16 | Buy |
4-Pyridoxic acid Chemical Properties,Uses,Production
Description
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 human metabolite and a mouse metabolite. It is a member of methylpyridines, a hydroxymethylpyridine, a monohydroxypyridine and a vitamin B6. It derives from an isonicotinic acid. It is a conjugate acid of a 4-pyridoxate.
https://pubchem.ncbi.nlm.nih.gov/compound/4-Pyridoxic-acid
Biotechnological Production
4-Pyridoxic acid is an inactive metabolite of pyridoxine.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.
4-Pyridoxic acid is the catabolic product of vitamin B6 (also known as pyridoxine, pyridoxal and pyradoxamine) which is excreted in the urine. Urinary levels of 4-pyridoxic acid are lower in females than in males and will be reduced in persons with riboflavin deficiency. 4-Pyridoxic acid is formed by the action of aldehyde oxidase I (an endogenous enzyme) and by microbial enzymes (pyridoxal 4-dehydrogenase), an NAD-dependent aldehyde dehydrogenase. 4-pyridoxic acid can be further broken down by the gut microflora via 4-pyridoxic acid dehydrogenase. This enzyme catalyzes the four electron oxidation of 4-pyridoxic acid to 3-hydroxy-2-methylpyridine-4,5-dicarboxylate, using nicotinamide adenine dinucleotide as a cofactor.
Uses
4-Pyridoxic acid is a catabolite of vitamin B6. It has been used as a standard in the clinical spectrometric analysis of metabolites.
Uses
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.
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.
IC 50
Microbial Metabolite; Human Endogenous Metabolite
4-Pyridoxic acid Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Moxin Chemicals | +86-17320513646 +8617320513646 | anna@molcoo.com | China | 10000 | 58 |
| ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD | +86-13017695106 +86-13676922317 | jiuyitime@fdachem.com | China | 16513 | 58 |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 | sales@conier.com | China | 49977 | 58 |
| Hunan Jibang Biological Technology Co., LTD | +8613776644403 | sales02@kingboomtech.com | China | 1804 | 58 |
| TargetMol Chemicals Inc. | +1-781-999-5354; | support@targetmol.com | United States | 39040 | 58 |
| Hu Bei Jiutian Bio-medical Technology CO.,Ltd | 027-88013699 17354350817 | Ryan@jiutian-bio.com | China | 5945 | 58 |
| Shanghai Acmec Biochemical Technology Co., Ltd. | +86-18621343501; +undefined18621343501 | product@acmec-e.com | China | 33324 | 58 |
| Jilin Chinese Academy of Sciences-yanshen Technology | +undefined18143011203 | info@chemextension.com | China | 42056 | 58 |
| Aladdin Scientific | tp@aladdinsci.com | United States | 57505 | 58 | |
| ShenZhen H&D Pharmaceutical Technology Co., LTD | +8618627948422 | sale@hdimpurity.com | China | 3681 | 58 |
Related articles
- What is 4-Pyridoxic acid?
- 4-Pyridoxic acid is the catabolic product of vitamin B6 (also known as pyridoxine, pyridoxal and pyradoxamine) which is excret....
- Sep 2，2021
View Lastest Price from 4-Pyridoxic acid manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-04-17 | 4-Pyridoxic acid
82-82-6
|
US $3.00-9.00 / KG | 0.01KG | 99% | g-kg-tons, free sample is available | ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD | |
 |
2026-03-12 | Vitamin B6 Impurity 49
82-82-6
|
US $0.00-0.00 / mg | 10mg | 98% | 500mg | ShenZhen H&D Pharmaceutical Technology Co., LTD | |
 |
2025-12-16 | Vitamin B6 Impurity 49
82-82-6
|
US $0.00-0.00 / mg | 10mg | 95 | 100000 | Moxin Chemicals |
-
- 4-Pyridoxic acid
82-82-6
- US $3.00-9.00 / KG
- 99%
- ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD
-
- Vitamin B6 Impurity 49
82-82-6
- US $0.00-0.00 / mg
- 98%
- ShenZhen H&D Pharmaceutical Technology Co., LTD
-
- Vitamin B6 Impurity 49
82-82-6
- US $0.00-0.00 / mg
- 95
- Moxin Chemicals
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