Amisulpride Impurity 31 CAS 2657666-20-9
| CAS No. | 2657666-20-9 |
| Molecular Formula | C11H15NO5S |
| Molecular Weight | 273.31 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.
Amisulpride Impurity 31 (CAS 2657666-20-9) is a certified pharmaceutical impurity reference standard with the molecular formula C11H15NO5S and a molecular weight of 273.31 g/mol.
Structurally, Amisulpride Impurity 31 (C11H15NO5S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 273.31 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), Amisulpride Impurity 31 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 | C11H15NO5S |
| Molecular Weight | 273.31 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| 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 |
| CAS Registry Year (est.) | 2002 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Amisulpride Standards
- Amisulpride Impurity 23 (CAS CATO-C4X-104523)
- Amisulpride Impurity 27 (CAS 1258980-24-3)
- Amisulpride Impurity 42 (CAS 31925-29-8)
- Amisulpride Impurity 29 (CAS 148516-69-2)
- Amisulpride Impurity 39 (CAS CATO-C4X-104539)
- Amisulpride EP Impurity E (CAS 71675-87-1)
- Amisulpride impurity 46 (CAS CATO-C4X-104546)
- Amisulpride Impurity 43 (CAS 79893-22-4)
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