Ulipristal Impurity 11 CAS CATO-C4X-191511
| CAS No. | CATO-C4X-191511 |
| Molecular Formula | C30H37NO5 |
| Molecular Weight | 491.62 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C30H37NO5, Ulipristal Impurity 11 contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 491.62 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).
Ulipristal Impurity 11 (CAS CATO-C4X-191511) is a certified pharmaceutical impurity reference standard with the molecular formula C30H37NO5 and a molecular weight of 491.62 g/mol.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
CATO manufactures Ulipristal Impurity 11 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C30H37NO5 |
| Molecular Weight | 491.62 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Ulipristal Standards
- Ulipristal Impurity 22 (CAS CATO-C4X-191522)
- Ulipristal impurity 52 (CAS CATO-C4X-191532)
- Ulipristal-d6 Acetate (CAS 1621894-64-1)
- Ulipristal Impurity 10 (CAS 244206-56-2)
- Ulipristal acetate D3(acyl D3) (CAS CATO-C4X-191533)
- Ulipristal Impurity 18 (CAS CATO-C4X-191518)
- Ulipristal Impurity 2 (CAS CATO-C4X-19152)
- Ulipristal Acetate (CAS 126784-99-4)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com