ChemicalBook >> CAS DataBase List >>3-Pyridinol N-oxide
3-Pyridinol N-oxide
- CAS No.
- 6602-28-4
- Chemical Name:
- 3-Pyridinol N-oxide
- Synonyms
- 3-PYRIDINOL 1-OXIDE;3-PYRIDINOL N-OXIDE;pyridin-3-ol 1-oxide;HydroxypyridineNoxide;Furosemide Impurity 74;1-Oxidopyridin-1-ium-3-ol;3-hydroxypyridine-1-oxide;3-Hydroxypyridine 1-oxide;3-HYDROXYPYRIDINE-N-OXIDE;3-Hydroxy pyridine-N-acid
- CBNumber:
- CB5220423
- Molecular Formula:
- C5H5NO2
- Molecular Weight:
- 111.1
- MDL Number:
- MFCD00006200
- MOL File:
- 6602-28-4.mol
- MSDS File:
- SDS
Last updated:2026-05-28 02:01:29
| Melting point | 190-192 °C(lit.) |
|---|---|
| Boiling point | 208.19°C (rough estimate) |
| Density | 1.3113 (rough estimate) |
| refractive index | 1.4260 (estimate) |
| pka | 8.07±0.10(Predicted) |
| form | powder to crystal |
| color | White to Yellow to Orange |
| InChI | InChI=1S/C5H5NO2/c7-5-2-1-3-6(8)4-5/h1-4,7H |
| InChIKey | YMEZKRMAPQIBQH-UHFFFAOYSA-N |
| SMILES | C1[N+]([O-])=CC=CC=1O |
| CAS DataBase Reference | 6602-28-4(CAS DataBase Reference) |
| NIST Chemistry Reference | Pyridinium,1,3-dihydroxy-,1-hydroxide,inner salt(6602-28-4) |
| UNSPSC Code | 12352100 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS07,GHS08 |
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|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H302+H312+H332-H315-H319-H335-H351 | |||||||||
| Precautionary statements | P280-P301+P312-P302+P352+P312-P304+P340+P312-P305+P351+P338-P308+P313 | |||||||||
| target organs | Respiratory system | |||||||||
| PPE | dust mask type N95 (US), Eyeshields, Gloves | |||||||||
| Hazard Codes | Xn | |||||||||
| Risk Statements | 20/21/22-36/37/38-40 | |||||||||
| Safety Statements | 26-27-36/37/39-7/8-36-22 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | UU7719100 | |||||||||
| HS Code | 29333999 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| Hazard Classifications | Acute Tox. 4 Dermal Acute Tox. 4 Inhalation Acute Tox. 4 Oral Carc. 2 Eye Irrit. 2 Skin Irrit. 2 STOT SE 3 |
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| NFPA 704 |
|
3-Pyridinol N-oxide price More Price(22)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 122521 | 3-Hydroxypyridine N-oxide 99% | 6602-28-4 | 5g | $42.4 | 2022-05-15 | Buy |
| TCI Chemical | H0492 | 3-Hydroxypyridine N-Oxide >96.0%(GC)(T) | 6602-28-4 | 5g | $41 | 2026-04-30 | Buy |
| TCI Chemical | H0492 | 3-Hydroxypyridine N-Oxide >96.0%(GC)(T) | 6602-28-4 | 25g | $102 | 2026-04-30 | Buy |
| Apolloscientific | OR21277 | 3-Hydroxypyridinium-1-olate 98% | 6602-28-4 | 1g | $21 | 2026-06-04 | Buy |
| Apolloscientific | OR21277 | 3-Hydroxypyridinium-1-olate 98% | 6602-28-4 | 5g | $29 | 2026-06-04 | Buy |
3-Pyridinol N-oxide Chemical Properties, Uses, Production
Chemical Properties
light yellow to beige fine crystalline powder
Uses
3-Hydroxypyridine N-oxide was used to study the substrate specificity of dimethyl sulfoxide reductase, isolated from anaerobically grown Escherichia coli.
General Description
3-Hydroxypyridine N-oxide exists in ethanol in the form of free base and in acid medium in the form of conjugate acid.
3-Pyridinol N-oxide Preparation Products And Raw materials
3-Pyridinol N-oxide Suppliers
Global Suppliers ( 143)
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Jinan LuoHe PharmaTech Co., Ltd. | 86-0531-68658065 15726150375 | 1071018499@qq.com | China | 525 | 58 |
| Shanghai Boyle Chemical Co., Ltd. | 021-50182298 021-50180596 | sales@boylechem.com | China | 2202 | 55 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| TCI (Shanghai) Development Co., Ltd. | 021-67121386 | Sales-CN@TCIchemicals.com | China | 24512 | 81 |
| Energy Chemical | 400-0056266 | sales8178@energy-chemical.com | China | 44850 | 61 |
| Shanghai Hanhong Scientific Co.,Ltd. | 021-54306202 13764082696 | info@hanhongsci.com | China | 42917 | 64 |
| XiaoGan ShenYuan ChemPharm co,ltd | 15527621225; 15527621225 | 1791901229@qq.com | China | 6740 | 52 |
| Shandong Xiya Chemical Co., Ltd | 13355009207 13355009207 | 3007715519@qq.com | China | 18722 | 57 |
| Tianjin heowns Biochemical Technology Co., Ltd. | 400 638 7771 | sales@heowns.com | China | 14412 | 57 |
View Latest Price from 3-Pyridinol N-oxide manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-08-20 | 3-Pyridinol N-oxide
6602-28-4
|
$1.10 | 1g | 99.00% | 100 Tons Min | Dideu Industries Group Limited |
-
- 3-Pyridinol N-oxide
6602-28-4
- $1.10
- 99.00%
- Dideu Industries Group Limited
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3-Pyridinol N-oxide ISO 9001：2015 REACH
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Furosemide Impurity 74
3-Hydroxypyridine N-oxide
6602-28-4
C5
Building Blocks
Pyridines
Heterocyclic Building Blocks
Pyridines, Pyrimidines, Purines and Pteredines
Pyridines derivates
Heterocyclic Compounds
Pyridines
Pyridine
