5-Ethyl-2-methyl-nicotinic acid ethyl ester CAS 22701-39-9
| CAS No. | 22701-39-9 |
| Molecular Formula | C11H15NO2 |
| Molecular Weight | 193.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-Ethyl-2-methyl-nicotinic acid ethyl ester is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
5-Ethyl-2-methyl-nicotinic acid ethyl ester (CAS 22701-39-9), molecular formula C11H15NO2 and molecular weight 193.24 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C11H15NO2, 5-Ethyl-2-methyl-nicotinic acid ethyl ester contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 193.24 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C11H15NO2 |
| Molecular Weight | 193.24 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 1 |
Recommended Standards
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- 2-((3-Cyano-6-(3-methoxyphenyl)-4-(trifluoromethyl)pyridin-2-yl)thio)-N-(5-ethyl-1,3,4-thiadiazol-2-yl)acetamide (CAS 625378-21-4)
- Semaglutide impurity 88 (CAS CATO-C4X-222688)
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