Ketoprofen Impurity 68 CAS CATO-C4X-147168
| CAS No. | CATO-C4X-147168 |
| Molecular Formula | C24H22O4 |
| Molecular Weight | 374.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Ketoprofen Impurity 68 (CAS CATO-C4X-147168), a pharmacopoeial impurity reference standard (molecular formula C24H22O4, MW 374.43 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a flavonoid core, a hydroxyl group, an ether linkage, Ketoprofen Impurity 68 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 374.43 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
As a certified reference material (CRM), Ketoprofen Impurity 68 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C24H22O4 |
| Molecular Weight | 374.43 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Ketoprofen Standards
- Ketoprofen 2-Ethylhexyl Ester (CAS CATO-C4X-147169)
- Ketoprofen Impurity 99 (CAS CATO-C4X-147199)
- Ketoprofen Impurity 116 (CAS 1777830-06-4)
- Ketoprofen Impurity 26 (CAS 1777829-91-0)
- Ketoprofen Impurity 60 (CAS 1777830-05-3)
- Ketoprofen Impurity 88 (CAS 1984110-22-6)
- Ketoprofen Impurity 93 (CAS 2733641-85-3)
- Ketoprofen Impurity 94 (CAS CATO-C4X-147194)
Recommended Standards
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- Methyl 4-Cyano-4-(2-fluorophenyl)butyrate (CAS 2006278-14-2)
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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