2-Cyclohexyl-1-phenylquinazolin-4(1H)-one CAS 71567-82-3
| CAS No. | 71567-82-3 |
| Molecular Formula | C20H20N2O |
| Molecular Weight | 304.39 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.
2-Cyclohexyl-1-phenylquinazolin-4(1H)-one (CAS 71567-82-3), molecular formula C20H20N2O and molecular weight 304.39 g/mol, is a CATO reference standard with documented purity and traceability.
2-Cyclohexyl-1-phenylquinazolin-4(1H)-one (C20H20N2O) contains a steroid core, 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).
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 | C20H20N2O |
| Molecular Weight | 304.39 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Nitrogen Atoms | 2 |
Related Cyclohexyl Standards
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- tert-Butyl (3R,4R)-4-amino-3-methylpiperidine-1-carboxylate (CAS 723308-58-5)
- rac-(3R,6S)-3-ethyl-6-methylpiperidin-2-one (CAS 1969287-45-3)
- Zotepine Impurity10 (CAS 19905-07-8)
- 6-Amino-1-((2-methylthiazol-4-yl)methyl)-5,6,7,8-tetrahydroquinolin-2(1H)-one (CAS 1422069-47-3)
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