Zonisamide Impurity 4 CAS 68292-02-4
| CAS No. | 68292-02-4 |
| Molecular Formula | C9H10N2O3S |
| Molecular Weight | 226.25 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
As a process- or degradation-related impurity, Zonisamide Impurity 4 (CAS 68292-02-4, C9H10N2O3S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Zonisamide Impurity 4 (C9H10N2O3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
CATO manufactures Zonisamide Impurity 4 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H10N2O3S |
| Molecular Weight | 226.25 g/mol |
| Purity | 97%+ |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Zonisamide Standards
- Zonisamide impurity 8 (CAS CATO-C4X-17858)
- Zonisamide Impurity 17 (CAS CATO-C4X-178517)
- Zonisamide Chloride (CAS 73101-65-2)
- Zonisamide sodium salt (CAS 68291-98-5)
- Zonisamide Impurity 1 (CAS CATO-C4X-17851)
- Zonisamide-d4 (CAS 1020720-04-0)
- Zonisamide-13C2-15N (CAS 1188265-58-8)
- Zonisamide Related Compound A (CAS 342623-49-8)
Recommended Standards
- Cefdinir Impurity 74 (CAS CATO-C4X-121074)
- 7-AVCA Impurity 1 (CAS CATO-C4X-23161)
- Cefixime Impurity 73 (CAS CATO-C4X-121073)
- 7-AVCA Impurity 5 (CAS CATO-C4X-23165)
- Anamorelin Impurity 15 (CAS CATO-C4X-285915)
- Fluralaner impurity 47 (CAS CATO-C4X-218047)
- Cefcapene Impurity 59 (CAS CATO-C4X-182459)
- methyl 4-(chlorosulfonyl)-5-methyl-2-furoate (CAS 344308-91-4)
- 2-((1,3,4-Thiadiazol-2-yl)thio)-1-(3-bromothiophen-2-yl)ethan-1-one (CAS 1156280-33-9)
- 2-(((1-Benzylpyrrolidin-3-yl)methyl)(methyl)amino)ethanol (CAS 1353964-58-5)
- N-(2-Chloro-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzyl)-n-ethylethanamine (CAS 2096332-20-4)
- 1-[2-(hydroxymethyl)pyrrolidin-1-yl]prop-2-en-1-one (CAS 1249680-18-9)
- 1-(2,4,5-Trifluorophenyl)-1h-pyrazol-3-amine (CAS 1343463-44-4)
- Ac-(5-31)Semaglutide (CAS CATO-C4X-2226279)
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