Diltiazem Impurity 24 CAS CATO-C4X-136824
| CAS No. | CATO-C4X-136824 |
| Molecular Formula | C19H22N2O3S |
| Molecular Weight | 358.45 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Diltiazem Impurity 24 (CAS CATO-C4X-136824) is a certified pharmaceutical impurity reference standard with the molecular formula C19H22N2O3S and a molecular weight of 358.45 g/mol.
Based on its molecular formula C19H22N2O3S, Diltiazem Impurity 24 contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 358.45 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
As a certified reference material (CRM), Diltiazem 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 | C19H22N2O3S |
| Molecular Weight | 358.45 g/mol |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Diltiazem Standards
- Diltiazem Impurity 7 (CAS 84903-82-2)
- Diltiazem Impurity 11 (CAS 81353-09-5)
- Diltiazem Impurity 26 (CAS 2055466-64-1)
- Diltiazem EP Impurity B (CAS 87447-47-0)
- Diltiazem Impurity 15 (CAS CATO-C4X-136815)
- Diltiazem impurity 29 (CAS 30193-56-7)
- Diltiazem Impurity 32 (CAS CATO-C4X-136832)
- Diltiazem Impurity 7 (CAS CATO-C4X-13687)
Recommended Standards
- Pioglitazone impurity 53 (CAS CATO-C4X-138353)
- Febuxostat Impurity 47 (CAS 1346238-10-5)
- Pioglitazone impurity 58 (CAS CATO-C4X-138358)
- Vortioxetine Impurity 139 (CAS CATO-C4X-1056139)
- Picosulfate Impurity N1 (CAS 22945-62-6)
- Tofacitinib Impurity 175 (CAS CATO-C4X-1079175)
- Olanzapine Impurity 28 (CAS CATO-C4X-117828)
- 4-(Ethylthio)-N-(4-(thiophen-2-yl)thiazol-2-yl)benzamide (CAS 922696-69-3)
- 3-Methoxy-4-nitrobenzaldehyde (CAS 80410-57-7)
- 2-Butoxyquinoline-3-carboxylic acid (CAS 88284-14-4)
- (2,3-Dimethylquinoxalin-5-yl)methanol (CAS 317593-22-9)
- Pyrido[3,4-b]pyrazin-8-amine (CAS 120208-34-6)
- 1-(Benzenesulfonyl)pyrrolidine-2-carboxylic acid (CAS 88425-47-2)
- Osteogenic Growth Peptide (CAS 132996-61-3)
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