4-Ethoxy-3-nitropyridine CAS 1796-84-5
| CAS No. | 1796-84-5 |
| Molecular Formula | C7H8N2O3 |
| Molecular Weight | 168.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Ethoxy-3-nitropyridine (C7H8N2O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies 4-Ethoxy-3-nitropyridine (CAS 1796-84-5), a certified reference material (molecular formula C7H8N2O3, MW 168.15 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C7H8N2O3 |
| Molecular Weight | 168.15 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.) | 1957 |
| Nitrogen Atoms | 2 |
Related Ethoxy Standards
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- 2-Ethoxy-5-nitropyridine (CAS 31594-45-3)
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Recommended Standards
- Methyl 6-hydrazinylpyridazine-3-carboxylate dihydrochloride (CAS 1788044-11-0)
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- 5H,6H,8H-imidazo[2,1-c][1,4]oxazine-8-carboxylic acid (CAS 1782916-28-2)
- Potassium 5-oxo-2,5-dihydro-1,2,4-oxadiazole-3-carboxylate (CAS 1803582-45-7)
- (2,5-dioxopyrrolidin-1-yl) (8Z,11Z,14Z,17Z)-icosa-8,11,14,17-tetraenoate (CAS 1798416-88-2)
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