Finerenone Impurity 88 CAS CATO-C4X-288088
| CAS No. | CATO-C4X-288088 |
| Molecular Formula | C13H11NO4 |
| Molecular Weight | 245.23 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Finerenone Impurity 88 is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Finerenone Impurity 88 (CAS CATO-C4X-288088) is a certified pharmaceutical impurity reference standard with the molecular formula C13H11NO4 and a molecular weight of 245.23 g/mol.
Finerenone Impurity 88 (C13H11NO4) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, 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).
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C13H11NO4 |
| Molecular Weight | 245.23 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; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Finerenone Standards
- Finerenone Impurity 106 (CAS CATO-C4X-2880106)
- Finerenone Impurity 90 （Z-Isomer） (CAS CATO-C4X-288090)
- Finerenone Impurity 26 (CAS CATO-C4X-288026)
- Finerenone Impurity 146 (CAS CATO-C4X-2880146)
- Finerenone Impurity 194 (CAS CATO-C4X-2880194)
- Finerenone Impurity 266 (CAS CATO-C4X-2880266)
- Finerenone Impurity 289 (CAS CATO-C4X-2880289)
- Finerenone Impurity 204 (CAS CATO-C4X-2880204)
Recommended Standards
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- 2-benzoyl-4-fluorophenol (CAS 362-47-0)
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