Ethyl 2,7,7-trimethyl-5-oxo-4-phenyl-1,4,5,6,7,8-hexahydroquinoline-3-carboxylate CAS 13337-64-9
| CAS No. | 13337-64-9 |
| Molecular Formula | C21H25NO3 |
| Molecular Weight | 339.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Ethyl 2,7,7-trimethyl-5-oxo-4-phenyl-1,4,5,6,7,8-hexahydroquinoline-3-carboxylate (CAS 13337-64-9), a certified reference material (molecular formula C21H25NO3, MW 339.43 g/mol) for analytical method development and quality control.
Ethyl 2,7,7-trimethyl-5-oxo-4-phenyl-1,4,5,6,7,8-hexahydroquinoline-3-carboxylate (C21H25NO3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C21H25NO3 |
| Molecular Weight | 339.43 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1960 |
| Nitrogen Atoms | 1 |
Related Ethyl Standards
- N-((1,4,6-trimethyl-1H-pyrazolo[3,4-b]pyridin-3-yl)carbamothioyl)benzamide (CAS 866131-80-8)
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Recommended Standards
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- 2-[2-(Furan-2-yl)phenyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 876316-28-8)
- N,N-Dibenzyloxycarbonyl-S,O,O-tri-benzyl-L-γ-glutamyl-L-cysteinyl-L-lysine (CAS 1356930-78-3)
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- tert-Butyl 2-carbamimidoylmorpholine-4-carboxylate (CAS 1260670-76-5)
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- RGX-104 (CAS 610318-54-2)
- Kailian strychnoside (CAS 19351-63-4)
- Semaglutide Impurity 191 (CAS CATO-C4X-2226191)
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