Finasteride Impurity 24 CAS CATO-C4X-164524
| CAS No. | CATO-C4X-164524 |
| Molecular Formula | C23H40N2O2 |
| Molecular Weight | 376.58 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Finasteride Impurity 24 (CAS CATO-C4X-164524) is a certified pharmaceutical impurity reference standard with the molecular formula C23H40N2O2 and a molecular weight of 376.58 g/mol.
Finasteride Impurity 24 (C23H40N2O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), Finasteride Impurity 24 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 | C23H40N2O2 |
| Molecular Weight | 376.58 g/mol |
| Appearance | Off-white to pale 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Finasteride Standards
- Finasteride EP Impurity A (CAS 98319-24-5)
- Finasteride Impurity 25 (CAS 172922-52-0)
- Finasteride (CAS 98319-26-7)
- Finasteride Impurity 11 (CAS CATO-C4X-164511)
- Finasteride Impurity 15 (CAS 140375-21-9)
- Finasteride Impurity 19 (CAS 166896-74-8)
- 5-Beta-Finasteride (CAS 140375-22-0)
- Finasteride Impurity 55 (CAS CATO-C4X-164555)
Recommended Standards
- N'-(Furan-2-ylmethylene)stearohydrazide (CAS 769144-03-8)
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- 2-[5-(Dodecylthio)-1,3,4-thiadiazol-2-yl]acetic acid (CAS 128016-39-7)
- Busulfan Impurity 2 (CAS CATO-C4X-14552)
- Dalilesen impurity 28 (CAS CATO-C4X-301028)
- Imatinib Impurity 43 (CAS CATO-C4X-106843)
- (E)-N-({5-[(2-chlorophenyl)sulfanyl]-1-methyl-3-phenyl-1H-pyrazol-4-yl}methylidene)hydroxylamine 10L-558S 321998-22-5 (CAS 321998-22-5)
- Methyl 2-amino-1-naphthoate (CAS 91569-18-5)
- N-Butyl-3-methoxy-4-(1H-purin-8-yl)benzenesulfonamide (CAS 89469-21-6)
- 9,10-Dihydro-9,10-[1,2]benzenoanthracene-2,7,14-triamine (CAS 58519-05-4)
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- Prucalopride Impurity 41 (DP-1) (CAS 76093-76-0)
- Tau Peptide (268-282) trifluoroacetate salt (CAS 330456-37-6)
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