Tibolone impurity 1 CAS 100239-44-9
| CAS No. | 100239-44-9 |
| Molecular Formula | C21H30O2 |
| Molecular Weight | 314.46 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C21H30O2, Tibolone impurity 1 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 314.46 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
Tibolone impurity 1 (CAS 100239-44-9) is a certified pharmaceutical impurity reference standard with the molecular formula C21H30O2 and a molecular weight of 314.46 g/mol.
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.
As a certified reference material (CRM), Tibolone impurity 1 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C21H30O2 |
| Molecular Weight | 314.46 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
Related Tibolone Standards
- Tibolone impurity 2 (CAS 100239-45-0)
- Tibolone (CAS 5630-53-5)
- Tibolone EP Impurity D (CAS 32297-45-3)
- Delta-4-Tibolone (CAS 1162-60-3)
- Tibolone D5 (CAS CATO-C4X-24034)
- Delta-4-Tibolone-D5 (CAS CATO-C4X-24037)
- Tibolone EP Impurity A (CAS CATO-C4X-240312)
- Tibolone EP Impurity A(10-β-Hydroxy 4-Tibolone) (CAS 105186-35-4)
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