Loxoprofen Impurity 47 CAS CATO-C4X-148847
| CAS No. | CATO-C4X-148847 |
| Molecular Formula | C28H35NO4 |
| Molecular Weight | 449.58 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Loxoprofen Impurity 47 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.
CATO supplies Loxoprofen Impurity 47 (CAS CATO-C4X-148847), a pharmacopoeial impurity reference standard (molecular formula C28H35NO4, MW 449.58 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C28H35NO4, Loxoprofen Impurity 47 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 449.58 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C28H35NO4 |
| Molecular Weight | 449.58 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Loxoprofen Standards
- Loxoprofen impurity 101 (CAS CATO-C4X-1488101)
- Loxoprofen impurity 105 (CAS CATO-C4X-1488105)
- Loxoprofen impurity 106 (CAS CATO-C4X-1488106)
- Loxoprofen impurity 93 (CAS CATO-C4X-148893)
- Loxoprofen Impurity 143 (CAS CATO-C4X-1488143)
- Loxoprofen Impurity 110 (CAS CATO-C4X-1488110)
- Loxoprofen impurity 126 (CAS CATO-C4X-1488126)
- Loxoprofen Impurity 46 (Mixture of Isomers) (CAS CATO-C4X-148846)
Recommended Standards
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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