2-Ethyl-1-methylquinolin-4(1H)-one CAS 139710-76-2
| CAS No. | 139710-76-2 |
| Molecular Formula | C12H13NO |
| Molecular Weight | 187.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Ethyl-1-methylquinolin-4(1H)-one (C12H13NO) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
2-Ethyl-1-methylquinolin-4(1H)-one (CAS 139710-76-2) is a high-purity analytical reference standard with the molecular formula C12H13NO and a molecular weight of 187.24 g/mol.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C12H13NO |
| Molecular Weight | 187.24 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 1 |
Related Ethyl Standards
- 1-Ethyl-8-methylquinolin-4(1H)-one (CAS 1211201-30-7)
- 1-Ethyl-6-methylquinolin-4(1H)-one (CAS 127286-00-4)
- 1-Ethyl-2-methylquinolin-4(1H)-one (CAS 15574-80-8)
- 3-ethyl-2-methylquinolin-4-ol (CAS 1888-01-3)
- 1-(4-Methylquinolin-1(2H)-yl)ethanone (CAS 402822-99-5)
- 1-(4-Methylquinolin-1(4H)-yl)ethanone (CAS 634891-63-7)
- 2-Ethyl-3-methylquinolin-8-ol (CAS 88611-52-3)
- 6-Ethyl-2-methylquinolin-4-ol (CAS 62510-40-1)
Recommended Standards
- Ethyl (1R,3S,4R)-3-amino-4-hydroxycyclohexane-1-carboxylate (CAS 1392879-00-3)
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- 1-Ethyl-5-methyl-1H-indole-3-carbaldehyde (CAS 1379205-28-3)
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- 5-(4-Fluorophenyl)-2-phenyl-3-(4-(trifluoromethyl)phenyl)dihydro-2H-pyrrolo[3,4-d]isoxazole-4,6(5H,6aH)-dione (CAS 6111-17-7)
- 4-(2,3-Dimethylphenoxy)-2-phenylpyrimidine-5-carboxylic acid (CAS 477859-49-7)
- 2-Bromo-4-chloro-5-methoxyaniline (CAS 98446-57-2)
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- Cetirizine EP Impurity B (CAS 1000690-91-4)
- Insulin Degludec Impurity 6 (CAS CATO-C4X-21576)
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