Amisulpride EP Impurity D CAS 71676-00-1
| CAS No. | 71676-00-1 |
| Molecular Formula | C16H25N3O4S |
| Molecular Weight | 355.45 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Amisulpride EP Impurity D (CAS 71676-00-1, C16H25N3O4S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Amisulpride EP Impurity D is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 355.45 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.
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), Amisulpride EP Impurity D 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 | C16H25N3O4S |
| Molecular Weight | 355.45 g/mol |
| Purity | >95% |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Amisulpride Standards
- Amisulpride EP Impurity B (CAS 148516-54-5)
- Amisulpride Impurity 57 (CAS CATO-C4X-104557)
- Amisulpride EP Impurity B (CAS CATO-C4X-104559)
- Amisulpride impurity 48 (CAS CATO-C4X-104548)
- Amisulpride Impurity 70 (CAS 2276663-21-7)
- Amisulpride Impurity 33 (CAS CATO-C4X-104533)
- Amisulpride Impurity 56 (CAS CATO-C4X-104556)
- Amisulpride impurity 51 (CAS CATO-C4X-104551)
Recommended Standards
- Tert-butyl 4-((4-aminophenyl)sulfonamido)piperidine-1-carboxylate (CAS 746630-27-3)
- tert-butyl 3-{2-[(4-methylbenzenesulfonyl)oxy]ethyl}azetidine-1-carboxylate (CAS 676125-83-0)
- Prasugrel EP Impurity A (CAS 1391194-45-8)
- tert-Butyl 3-(tosyloxy)piperidine-1-carboxylate (CAS 85275-46-3)
- Creatine Phosphate Impurity 14 (CAS CATO-C4X-120914)
- Cinacalcet Impurity 66 (CAS CATO-C4X-105966)
- Landiolol Impurity 125 (CAS CATO-C4X-2621125)
- Octane-1,8-diyl bis(2,2,6,6-tetramethylpiperidine-4-carboxylate) (CAS 67845-92-5)
- 2-Amino-6-(trifluoromethyl)benzonitrile (CAS 58458-11-0)
- 1-(5-Nitrothiazol-2-yl)pyrrolidin-2-one (CAS 13109-99-4)
- 4-Fluoro-2-(trifluoromethyl)benzoyl chloride (CAS 189807-21-4)
- 1-Nitro-4-(nonyloxy)benzene (CAS 86702-46-7)
- 1-(2,6-Diaminopyridin-3-yl)ethanone (CAS 1393554-95-4)
- Semaglutide Impurity 75 (CAS CATO-C4X-2226175)
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