3-Methoxy-5-nitropyridine CAS 128203-37-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 128203-37-2 |
| Molecular Formula | C6H6N2O3 |
| Molecular Weight | 154.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Methoxy-5-nitropyridine (CAS 128203-37-2) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C6H6N2O3. Molecular weight: 154.12 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C6H6N2O3 |
| Molecular Weight | 154.12 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Nitrogen Atoms | 2 |
Related Methoxy Standards
- 4-Methoxy-2-nitropyridine (CAS 1033203-56-3)
- 2-Methoxy-6-nitropyridine (CAS 1246566-53-9)
- 5-Methoxy-pyrimidine-4-carboxylic acid (CAS 1246632-76-7)
- 5-Methoxy-2-nitropyridine (CAS 126739-64-8)
- 2-Methoxy-4-nitropyridine (CAS 18614-54-5)
- 2-Methoxy-3-nitropyridine (CAS 20265-35-4)
- 2-Methoxy-5-nitropyridine (CAS 5446-92-4)
- 3-Methoxy-2-nitropyridine (CAS 20265-37-6)
Recommended Standards
- 2-(4-Formyl-1H-pyrazol-1-yl)acetic acid (CAS 1273318-62-9)
- 2,3-Dihydropyrazolo[5,1-b]oxazole-7-carboxylic acid (CAS 1286755-21-2)
- 4-formyl-1-methyl-1H-pyrazole-3-carboxylic acid (CAS 1267443-23-1)
- 2-Amino-4-chloro-N-[(1R,2R)-2-(2,4-difluorophenyl)-2-hydroxy-1-methyl-3-(1H-1,2,4-triazol-1-yl)propyl]benzamide (CAS 206350-07-4)
- (S)-2-((tert-Butoxycarbonyl)amino)-3-(2,3-difluoro-4-hydroxyphenyl)propanoic acid (CAS 1213052-51-7)
- 1,1,3-Triethylurea (CAS 19006-59-8)
- 4-Cyclopropoxy-5-ethylpicolinamide (CAS 1243288-30-3)
- 1-(2,6-Difluorobenzyl)-5-oxopyrrolidine-3-carboxylic acid (CAS 304859-20-9)
- [2-(4-Bromo-2-fluorophenyl)ethoxy](tert-butyl)dimethylsilane (CAS 924312-10-7)
- Semaglutide Impurity 177 (CAS CATO-C4X-2226177)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com