4-Carboxy-2-hydroxypyridine 1-oxide CAS 13602-64-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 13602-64-7 |
| Molecular Formula | C21H21N3O9 |
| Molecular Weight | 459.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Carboxy-2-hydroxypyridine 1-oxide (CAS 13602-64-7) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C21H21N3O9. Molecular weight: 459.41 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C21H21N3O9 |
| Molecular Weight | 459.41 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1960 |
| Nitrogen Atoms | 3 |
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Recommended Standards
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- (R)-2-amino-3-(6-amino-1,3-dioxo-5,8-disulfo-1H-benzo[de]isoquinolin-2(3H)-yl)propanoic acid (CAS 1471982-33-8)
- 5'-(4-Amino-3,5-difluorophenyl)-3,3'',5,5''-tetrafluoro-[1,1':3',1''-terphenyl]-4,4''-diamine (CAS 2750241-87-1)
- 2-(6-Fluoro-1H-indol-3-yl)-N-(3-(2,2,3,3-tetrafluoropropoxy)benzyl)ethanamine hydrochloride (CAS 467458-02-2)
- Benzyl (S)-4-hydroxyazepane-1-carboxylate (CAS 1292324-55-0)
- 7-(4-methoxyphenyl)-7-methyl-3-phenyltetrahydro-5H-imidazo[1,5-b][1,2,4]triazole-2,5(3H)-dithione (CAS 400087-01-6)
- Methyl 3-(trifluoromethoxy)picolinate (CAS 1206979-70-5)
- 3-(4-Hydroxyphenyl)-3-phenylbutan-2-one (CAS 3155-04-2)
- 1-(5-Chlorofuran-2-yl)ethanol (CAS 1644345-92-5)
- Des-Ala21-Tirzepatide (CAS CATO-CPTD788952)
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