Ulipristal impurity 52 CAS CATO-C4X-191532
| CAS No. | CATO-C4X-191532 |
| Molecular Formula | C29H34N2O5 |
| Molecular Weight | 490.59 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Ulipristal impurity 52 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.
Ulipristal impurity 52 (CAS CATO-C4X-191532) is a certified pharmaceutical impurity reference standard with the molecular formula C29H34N2O5 and a molecular weight of 490.59 g/mol.
The molecular framework of Ulipristal impurity 52 (C29H34N2O5) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C29H34N2O5 |
| Molecular Weight | 490.59 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Ulipristal Standards
- Ulipristal Impurity 11 (CAS CATO-C4X-191511)
- Ulipristal Impurity 22 (CAS CATO-C4X-191522)
- Ulipristal-d6 Acetate (CAS 1621894-64-1)
- Ulipristal acetate D3(acyl D3) (CAS CATO-C4X-191533)
- Ulipristal Impurity 10 (CAS 244206-56-2)
- Ulipristal Impurity 18 (CAS CATO-C4X-191518)
- Ulipristal Impurity 2 (CAS CATO-C4X-19152)
- Ulipristal Acetate (CAS 126784-99-4)
Recommended Standards
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- Besudil Impurity 3 (CAS CATO-C4X-29883)
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- Methylprednisolone Impurity 37 (CAS 1746-38-9)
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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