Teprenone impurity 42 CAS CATO-C4X-208142
| CAS No. | CATO-C4X-208142 |
| Molecular Formula | C23H38O2 |
| Molecular Weight | 346.55 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| 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.
Teprenone impurity 42 (CAS CATO-C4X-208142) is a certified pharmaceutical impurity reference standard with the molecular formula C23H38O2 and a molecular weight of 346.55 g/mol.
Based on its molecular formula C23H38O2, Teprenone impurity 42 contains a steroid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 346.55 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 quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Physical & Chemical Properties
| Molecular Formula | C23H38O2 |
| Molecular Weight | 346.55 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Teprenone Standards
- Teprenone Impurity 24 (CAS CATO-C4X-208124)
- Teprenone Impurity 25 (CAS CATO-C4X-208125)
- Teprenone Impurity 26 (CAS CATO-C4X-208126)
- Teprenone impurity 34 (CAS CATO-C4X-208134)
- Teprenone impurity 35 (CAS CATO-C4X-208135)
- Teprenone impurity 36 (CAS CATO-C4X-208136)
- Teprenone impurity 39 (CAS CATO-C4X-208139)
- Teprenone impurity 40 (CAS CATO-C4X-208140)
Recommended Standards
- Teprenone impurity 44 (CAS CATO-C4X-208144)
- Teprenone impurity 52 (CAS CATO-C4X-208152)
- Teprenone impurity 53 (CAS CATO-C4X-208153)
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