Loxoprofen Impurity 167 CAS CATO-C4X-1488167
| CAS No. | CATO-C4X-1488167 |
| Molecular Formula | C18H24O5 |
| Molecular Weight | 320.38 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Loxoprofen Impurity 167 is closely related to a flavonoid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Loxoprofen Impurity 167 (CAS CATO-C4X-1488167) is a certified pharmaceutical impurity reference standard with the molecular formula C18H24O5 and a molecular weight of 320.38 g/mol.
Loxoprofen Impurity 167 (C18H24O5) contains a flavonoid core, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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.
CATO manufactures Loxoprofen Impurity 167 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 | C18H24O5 |
| Molecular Weight | 320.38 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Loxoprofen Standards
- Loxoprofen Impurity 137 (CAS CATO-C4X-1488137)
- Loxoprofen Impurity 138 (CAS CATO-C4X-1488138)
- Loxoprofen Impurity 139 (CAS CATO-C4X-1488139)
- Loxoprofen Impurity 168 (CAS CATO-C4X-1488168)
- Loxoprofen Impurity 40 (CAS CATO-C4X-148840)
- Loxoprofen Impurity 42 (CAS CATO-C4X-148842)
- Loxoprofen impurity 86 (CAS CATO-C4X-148886)
- Loxoprofen impurity 87 (CAS CATO-C4X-148887)
Recommended Standards
- Roxatidine Impurity 15 (CAS CATO-C4X-121315)
- Rosuvastatin Impurity 108 (CAS 160009-35-8)
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- Loxoprofen impurity 98 (CAS CATO-C4X-148898)
- Betamethasone impurity 74 (CAS CATO-C4X-143774)
- Roxadustat impurity 120 (CAS CATO-C4X-2213120)
- Ledipasvir Impurity 40 (CAS CATO-C4X-331340)
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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