Indometacin Impurity 58 CAS CATO-C4X-147058
| CAS No. | CATO-C4X-147058 |
| Molecular Formula | C7H7N2O4S |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Indometacin Impurity 58 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.
CATO supplies Indometacin Impurity 58 (CAS CATO-C4X-147058), a pharmacopoeial impurity reference standard (molecular formula C7H7N2O4SNa, MW 238.19 g/mol) used for the identification and quantification of trace impurities in APIs.
Indometacin Impurity 58 (C7H7N2O4SNa) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. 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).
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.
Physical & Chemical Properties
| Molecular Formula | C7H7N2O4S Na |
| Molecular Weight | 238.19 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Indometacin Standards
- Indometacin Impurity 17 (CAS 10414-67-2)
- Indometacin EP Impurity H (CAS 1601-18-9)
- Indometacin EP Impurity I (CAS 16401-99-3)
- Indometacin Impurity 28 (CAS 193603-94-0)
- Indometacin EP Impurity B (CAS 2882-15-7)
- Indometacin Impurity 57 (CAS 3050535-92-4)
- Indometacin EP Impurity C (CAS 4018-82-0)
- Indometacin EP Impurity J (CAS 402849-25-6)
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- endo-Ser39-Tirzepatide (CAS CATO-CPTD788935)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com