Fenofibrate Impurity 21 CAS CATO-C4X-101821
| CAS No. | CATO-C4X-101821 |
| Molecular Formula | C23H29NO5 |
| Molecular Weight | 399.48 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 399.48 g/mol gives Fenofibrate Impurity 21 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Fenofibrate Impurity 21 (CAS CATO-C4X-101821, C23H29NO5) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Fenofibrate Impurity 21 (C23H29NO5) is characterized by a flavonoid 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
As a certified reference material (CRM), Fenofibrate Impurity 21 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 | C23H29NO5 |
| Molecular Weight | 399.48 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Fenofibrate Standards
- Fenofibrate Impurity 9 (CAS CATO-C4X-16439)
- Fenofibrate Dihydro Impurity (CAS 61001-99-8)
- Fenofibrate Impurity 10 (CAS CATO-C4X-164310)
- Fenofibrate (CAS 49562-28-9)
- Fenofibrate Impurity 17 (CAS CATO-C4X-101817)
- Fenofibrate Impurity 18 (CAS CATO-C4X-101818)
- Fenofibrate EP Impurity G (CAS 217636-48-1)
- Fenofibrate Impurity 33 (CAS 62809-68-1)
Recommended Standards
- Ethyl N-(tert-butoxycarbonyl)-N-((1S,2R)-2-hydroxy-1,2-diphenylethyl)glycinate (CAS 112741-70-5)
- Agomelatine Impurity 4 (CAS CATO-C4X-11084)
- p-Nitrophenyl p-decyloxybenzoate (CAS 63635-84-7)
- Atorvastatin Impurity 26 (CAS 444577-70-2)
- Moxifloxacin Impurity 151 (CAS CATO-C4X-1074151)
- Thiamine /Vitamin B1 Impurity 45 (CAS CATO-C4X-187345)
- Dotinurad Impurity 53 (CAS CATO-C4X-249453)
- 1-Allyl-6,7-dihydro-1H-indol-4(5H)-one (CAS 81565-17-5)
- Cyetpyrafen (CAS 1253429-01-4)
- 1-(1-Aminocyclobutyl)propan-2-ol (CAS 1132814-73-3)
- (1R,2R,3R,4S,5R,6S,7S,8S)-Methyl 4-fluorocubane-1-carboxylate (CAS 141046-54-0)
- 1-(Pyridin-4-yl)pyrrolidin-3-one (CAS 1447961-67-2)
- rel-(1R,3R)-3-Methoxy-3-methylcyclohexanamine (CAS 2271478-69-2)
- Liraglutide(8-31)TFA Salt (CAS CATO-C4X-19922)
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