Ketoconazole EP Impurity C (and enantiomer) CAS 83374-59-8
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 83374-59-8 |
| Molecular Formula | C26H28Cl2N4O4 |
| Molecular Weight | 531.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Order Ketoconazole EP Impurity C (and enantiomer) (CAS 83374-59-8) pharmacopoeial impurity standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C26H28Cl2N4O4. Molecular weight: 531.43 g/mol. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C26H28Cl2N4O4 |
| Molecular Weight | 531.43 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| Storage | Store in a cool place (≤25°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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Ketoconazole Standards
- Ketoconazole (CAS 65277-42-1)
- Ketoconazole Impurity 26 (CAS CATO-C4X-147226)
- Ketoconazole EP Impurity A (and enantiomer) (CAS 254912-63-5)
- Ketoconazole-d8 (CAS 1217706-96-1)
- Ketoconazole impurity 33 (CAS CATO-C4X-147233)
- Ketoconazole impurity 27 (CAS CATO-C4X-147227)
- Ketoconazole N-Oxide (and enantiomer) (CAS 254912-65-7)
- Ketoconazole N-Oxide (CAS 1392277-16-5)
Recommended Standards
- tert-butyl 4-(2-iodo-1-(2-phenyl-1H-benzo[d]imidazol-1-yl)ethyl)piperidine-1-carboxylate (CAS 2444540-38-7)
- 2-({5-[3-(2,4-dichlorophenoxy)propyl]-4-phenyl-4H-1,2,4-triazol-3-yl}sulfanyl)-N-(4-fluorophenyl)acetamide (CAS 882749-73-7)
- Levofolinate Impurity 18 (CAS CATO-C4X-133518)
- Tetrabenazine Impurity 26-D9 (CAS CATO-C4X-274826)
- 2,4-Dichlorobenzyl Alcohol EP Impurity A (CAS 34145-05-6)
- Warfarin Impurity 12 (CAS CATO-C4X-142912)
- n-Ethyl-4-methoxy-3-methylbenzenesulfonamide (CAS 664317-88-8)
- tert-Butyl 2-(1-Methylhydrazinyl)acetate (CAS 144036-71-5)
- Methyl 3-hydroxy-5-isopropoxybenzoate (CAS 480465-09-6)
- Tirzepatide Impurity 61 (CAS CATO-C4X-324061)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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