Diltiazem Impurity 32 CAS CATO-C4X-136832
| CAS No. | CATO-C4X-136832 |
| Molecular Formula | C17H19NO4S |
| Molecular Weight | 333.40 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.
As a process- or degradation-related impurity, Diltiazem Impurity 32 (CAS CATO-C4X-136832, C17H19NO4S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Diltiazem Impurity 32 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 333.40 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), Diltiazem Impurity 32 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 | C17H19NO4S |
| Molecular Weight | 333.40 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Diltiazem Standards
- Diltiazem Impurity 15 (CAS CATO-C4X-136815)
- Diltiazem impurity 29 (CAS 30193-56-7)
- Diltiazem Impurity 7 (CAS CATO-C4X-13687)
- Diltiazem EP Impurity B (CAS 87447-47-0)
- Diltiazem Impurity N1 (CAS 42399-48-4)
- Diltiazem Impurity N2 (CAS 42399-50-8)
- Diltiazem Impurity 18 (CAS 131613-02-0)
- Diltiazem Impurity 23 (CAS 119009-50-6)
Recommended Standards
- Lovastatin Impurity 46 (CAS CATO-C4X-168446)
- Febuxostat Impurity 94 (CAS CATO-C4X-116294)
- Lifitegrast Impurity 136 (CAS 1865726-28-8)
- Febuxostat Impurity 85 (CAS CATO-C4X-116285)
- Alfuzosin EP Impurity D (CAS 76362-29-3)
- Sermorelin Impurity 2 (CAS CATO-C4X-23422)
- Bisoprolol EP impurity K Maleic Acid (CAS 864544-37-6(free base))
- tert-Butyl 3-(pyridin-4-yloxy)piperidine-1-carboxylate (CAS 954228-57-0)
- Methyl 3-(Cyclopropylamino)-4-nitrobenzoate (CAS 1912589-06-0)
- 1-(3-Iodophenyl)-n-methylmethanesulfonamide (CAS 1286754-49-1)
- (S)-5-(2,6-difluorophenyl)pyrrolidin-2-one (CAS 1181818-11-0)
- 5-Bromo-1-(4-(hydroxymethyl)phenyl)-4-methyl-1H-pyrrole-2-carbonitrile (CAS 142015-94-9)
- 4-(1,2,2-Triphenylvinyl)benzimidamide (CAS 2734780-03-9)
- Semaglutide Impurity 15 (CAS CATO-C4X-222615)
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