Finerenone Impurity 143 CAS CATO-C4X-2880143
| CAS No. | CATO-C4X-2880143 |
| Molecular Formula | C9H11NO4 |
| Molecular Weight | 197.19 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Finerenone Impurity 143.
Finerenone Impurity 143 (CAS CATO-C4X-2880143) is a certified pharmaceutical impurity reference standard with the molecular formula C9H11NO4 and a molecular weight of 197.19 g/mol.
Structurally, Finerenone Impurity 143 (C9H11NO4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 197.19 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C9H11NO4 |
| Molecular Weight | 197.19 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Finerenone Standards
- Finerenone Impurity 144 (CAS CATO-C4X-2880144)
- Finerenone Impurity 145 (CAS CATO-C4X-2880145)
- Finerenone Impurity 271 (CAS 2385507-99-1)
- Finerenone Impurity 272 (CAS 2385902-88-3)
- Finerenone Impurity 273 (CAS 2384678-77-5)
- Finerenone Impurity 166 (CAS CATO-C4X-2880166)
- Finerenone Impurity 171 (CAS CATO-C4X-2880171)
- Finerenone Impurity 280 (CAS 2384742-34-9)
Recommended Standards
- Daprodustat Impurity 39 (CAS CATO-C4X-240739)
- Metaraminol Impurity 89 (CAS 1602857-88-4)
- Metaraminol Impurity 22 (CAS CATO-C4X-225222)
- Tepotinib impurity 34 (CAS 52240-10-5)
- 索拉非尼杂质9 (CAS 370-50-3)
- Levofloxacin Impurity 92 (CAS CATO-C4X-137192)
- Metformin EP impurity F Tetrahydrofuran Solution (CAS 124-40-3 (free base))
- 1-Ethoxy-3-methyl-5-nitrobenzene (CAS 1881328-93-3)
- 1-(3-Phenylallyl)-1H-benzo[d]imidazole (CAS 565442-00-4)
- 6-(2,5-Dimethylphenyl)-6-oxohexanoic acid (CAS 861556-61-8)
- 6-Chloro-N-(cyclopentylmethyl)pyridazine-3-carboxamide (CAS 1179792-14-3)
- 1-Styrylisoquinoline (CAS 36680-19-0)
- Pinaverium Bromide Impurity 14 (CAS CATO-C4X-246714)
- Tirzepatide Impurity 36 (CAS CATO-C4X-324036)
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