Levonorgestrel EP Impurity R CAS 2322-77-2
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 2322-77-2 |
| Molecular Formula | C20H28O2 |
| Molecular Weight | 300.44 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Levonorgestrel EP Impurity R (CAS 2322-77-2) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C20H28O2. Molecular weight: 300.44 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C20H28O2 |
| Molecular Weight | 300.44 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.) | 1957 |
Related Levonorgestrel Standards
- Levonorgestrel EP Impurity D (CAS 32419-58-2)
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- Levonorgestrel Impurity N1 (CAS 7443-72-3)
- Levonorgestrel Impurity 4 (Ethylmetrienone) (CAS 848-04-4)
- Levonorgestrel EP Impurity W (CAS 155683-59-3)
- Levonorgestrel Impurity 33 (CAS 93798-38-0)
- Levonorgestrel EP Impurity A (CAS 1260525-53-8)
- Levonorgestrel EP Impurity M (CAS 51087-61-7)
Recommended Standards
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- Rivaroxaban Impurity 112 (CAS 90564-02-6)
- Fluticasone Impurity 103 (CAS CATO-C4X-1650103)
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- 2-(Aminomethyl)-5-bromo-6-(difluoromethyl)-3-(trifluoromethyl)pyridine (CAS 1804667-12-6)
- Allo-Thr7-Tirzepatide (CAS CATO-CPTD788933)
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