Levonorgestrel EP Impurity T CAS 14507-51-8
| CAS No. | 14507-51-8 |
| Molecular Formula | C22H30O2 |
| Molecular Weight | 326.47 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a steroid core, a hydroxyl group, an ether linkage, Levonorgestrel EP Impurity T is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 326.47 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a process- or degradation-related impurity, Levonorgestrel EP Impurity T (CAS 14507-51-8, C22H30O2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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.
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 | C22H30O2 |
| Molecular Weight | 326.47 g/mol |
| Appearance | Pale yellow to 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
Related Levonorgestrel Standards
- Levonorgestrel EP Impurity S (CAS 176254-10-7)
- Levonorgestrel EP Impurity T (CAS 799-43-9)
- Levonorgestrel EP Impurity J (CAS 1175109-63-3)
- Levonorgestrel Impurity 40 (10R) (CAS CATO-C4X-167740)
- Levonorgestrel Impurity 41 (CAS CATO-C4X-167741)
- Levonorgestrel EP Impurity G (CAS 87585-03-3)
- Levonorgestrel EP Impurity H (CAS 55555-97-0)
- Levonorgestrel EP Impurity I (CAS 21508-50-9)
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