Amisulpride Impurity 21 CAS 59488-40-3
| CAS No. | 59488-40-3 |
| Molecular Formula | C9H8N2O3S |
| Molecular Weight | 224.24 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 21 (CAS 59488-40-3) is a certified pharmaceutical impurity reference standard with the molecular formula C9H8N2O3S and a molecular weight of 224.24 g/mol.
The molecular framework of Amisulpride Impurity 21 (C9H8N2O3S) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
As a certified reference material (CRM), Amisulpride Impurity 21 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 | C9H8N2O3S |
| Molecular Weight | 224.24 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Amisulpride Standards
- Amisulpride Impurity 22 (CAS 1823413-49-5)
- Amisulpride Impurity 24 (CAS 81487-05-0)
- Amisulpride Impurity 66 (CAS CATO-C4X-104566)
- Amisulpride Impurity 28 (CAS 80036-86-8)
- Amisulpride Impurity 41 (CAS 2230058-95-2)
- Amisulpride Impurity 38 (CAS 59168-56-8)
- Amisulpride Impurity 62 (CAS CATO-C4X-104562)
- Amisulpride Impurity 20 (CAS CATO-C4X-104520)
Recommended Standards
- 3-Methyl-4-(phenylsulfonyl)-1,2,5-oxadiazole 49739-42-6 (CAS 49739-42-6)
- Sephadex LH-20 (CAS 9041-37-6)
- Furan-3-yl(naphthalen-2-yl)methanol (CAS 1008533-24-1)
- N-Phenyl-1H-1,2,4-triazole-3-sulfonamide (CAS 29982-64-7)
- Azithromycin CP Impurity Q (CAS 99290-97-8)
- Erlotinib Impurity 144 (CAS CATO-C4X-1069144)
- Difamilast Impurity 11 (CAS 2103190-98-1)
- 3-(4-(2-Fluorobenzamido)phenoxy)thiophene-2-carboxylic acid (CAS 900015-24-9)
- N-((6-Chloropyridin-3-yl)methyl)thiazol-2-amine hydrochloride (CAS 1046802-02-1)
- 2-[4-(Benzyloxy)phenyl]-2-propanol (CAS 94571-13-8)
- Tert-butyl 3-(difluoromethyl)-4-hydroxypyrrolidine-1-carboxylate (CAS 2171890-26-7)
- 4-(Trifluoromethyl)thiophen-2-amine hydrochloride (CAS 400801-32-3)
- (5-Bromo-2-methylphenyl)hydrazine (CAS 752200-75-2)
- Insulin Detemir (CAS 169148-63-4)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com