Finerenone Impurity 137 CAS CATO-C4X-2880137
| CAS No. | CATO-C4X-2880137 |
| Molecular Formula | C20H23N3O3 |
| Molecular Weight | 353.41 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Finerenone Impurity 137 (CAS CATO-C4X-2880137, C20H23N3O3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Finerenone Impurity 137 (C20H23N3O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 353.41 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
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 | C20H23N3O3 |
| Molecular Weight | 353.41 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
Related Finerenone Standards
- Finerenone Impurity 215 (CAS 1381846-22-5)
- Finerenone Impurity 78 (CAS CATO-C4X-288078)
- Finerenone Impurity 241 (CAS 3046141-71-0)
- Finerenone Impurity 54 (CAS CATO-C4X-288054)
- Finerenone Impurity 58 (CAS CATO-C4X-288058)
- Finerenone Impurity 268 (CAS CATO-C4X-2880268)
- Finerenone Impurity 36 (CAS 2087452-81-9)
- Finerenone Impurity 103 (CAS CATO-C4X-2880103)
Recommended Standards
- Tetrabenazine Impurity 15 (CAS 1256550-62-5)
- Nemonoxacin Impurity 57 (CAS CATO-C4X-312857)
- Tetrabenazine Impurity 13 (CAS CATO-C4X-274813)
- Tinuvin 1130 (CAS 84268-33-7)
- Verapamil Impurity 49 (CAS CATO-C4X-177849)
- (3R,4R)-Gemcitabine Impurity 23 (CAS CATO-C4X-137223)
- Diacerein Impurity 18 (CAS 154658-30-7)
- Octahydroindolizine-2-carbonitrile (CAS 1315366-29-0)
- Kinetin hydrochloride (CAS 177966-68-6)
- Tert-butyl (2S)-2-(1-aminoethyl)pyrrolidine-1-carboxylate (CAS 1788284-48-9)
- Pheniramine Impurity 1 (CAS 14155-36-3)
- Pregabalin Impurity 82 (CAS CATO-C4X-131282)
- N-Cyclohexyl-1-isopropyl-4-nitro-1H-pyrazol-3-amine (CAS 1429418-38-1)
- Prolactin-Releasing Peptide (12-31) (human) (CAS 235433-36-0)
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