Ketoprofen EP Impurity C CAS 68432-95-1
| CAS No. | 68432-95-1 |
| Molecular Formula | C10H10O4 |
| Molecular Weight | 194.18 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Ketoprofen EP Impurity C (C10H10O4) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), 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).
CATO supplies Ketoprofen EP Impurity C (CAS 68432-95-1), a pharmacopoeial impurity reference standard (molecular formula C10H10O4, MW 194.18 g/mol) used for the identification and quantification of trace impurities in APIs.
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 EP Impurity C 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 | C10H10O4 |
| Molecular Weight | 194.18 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
Related Ketoprofen Standards
- Ketoprofen Impurity 22 (CAS 42872-29-7)
- Ketoprofen Impurity 45 (CAS 1272414-15-9)
- Ketoprofen Impurity 36 (CAS 872091-00-4)
- Ketoprofen Impurity 38 (CAS 64379-72-2)
- Ketoprofen Impurity 44 (CAS 131019-17-5)
- Ketoprofen Impurity 63 (CAS 146257-39-8)
- Ketoprofen Impurity 38 (CAS 24131-07-5)
- Ketoprofen Impurity 24 (CAS 872091-85-5)
Recommended Standards
- Aspirin Impurity 17 (CAS 77527-00-5)
- Doxazosin Impurity 10 (CAS 3663-79-4)
- Aspirin Impurity 13 (CAS 57009-12-8)
- Ferulic Acid Impurity 2 (CAS 1014-83-1)
- Atenolol EP Impurity I (CAS 1797116-92-7)
- Amlodipine Impurity 145 fumarate (CAS 88150-53-2)
- Rabeprazole EP Impurity I (CAS 924663-37-6)
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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
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com