Finerenone Impurity 231 CAS CATO-C4X-2880231
| CAS No. | CATO-C4X-2880231 |
| Molecular Formula | C21H21N5O3 |
| Molecular Weight | 391.42 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 231.
As a process- or degradation-related impurity, Finerenone Impurity 231 (CAS CATO-C4X-2880231, C21H21N5O3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, Finerenone Impurity 231 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 391.42 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 | C21H21N5O3 |
| Molecular Weight | 391.42 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 5 |
Related Finerenone Standards
- Finerenone Impurity 124 (CAS CATO-C4X-2880124)
- Finerenone Impurity 120 (CAS CATO-C4X-2880120)
- Finerenone Impurity 11 (CAS 2640280-85-7)
- Finerenone Impurity 134 (CAS CATO-C4X-2880134)
- Finerenone Impurity 69 (CAS CATO-C4X-288069)
- Finerenone Impurity 87 (CAS CATO-C4X-288087)
- Finerenone Impurity 70 (CAS CATO-C4X-288070)
- Finerenone Impurity 101 (CAS CATO-C4X-2880101)
Recommended Standards
- Orysastrobin (CAS 248593-16-0)
- Icotinib (CAS 610798-31-7)
- Fmoc-His(1-Me)-OH (CAS 202920-22-7)
- Flurbiprofen Impurity 63 (CAS CATO-C4X-144463)
- Estradiol Impurity 7 (CAS 7291-41-0)
- Verapamil EP Impurity M (CAS 141991-89-1)
- Oseltamivir Impurity 252 (CAS CATO-C4X-1720252)
- Benzyl 2,4-di-O-benzoyl-α-D-xylopyranoside (CAS 18403-18-4)
- N-[4-(2-Cyclohexylethoxy)phenyl]-N-(3-propoxybenzyl)amine (CAS 1040693-67-1)
- N-Benzyl-1H-1,2,3-triazole-5-carboxamide (CAS 1488290-48-7)
- (5E)-5-{[4-(methylsulfanyl)phenyl]methylidene}-2-sulfanylidene-1,3-thiazolidin-4-one 127378-28-3 5X-0220 (CAS 127378-28-3)
- tert-butyl 3-bromo-3-(hydroxymethyl)azetidine-1-carboxylate (CAS 2007919-81-3)
- n-(4-Bromo-3-methylbenzyl)-3-methylbutan-2-amine (CAS 1512069-11-2)
- Peptide Impurity 70 TFA Salt (CAS CATO-CPTD788570)
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