Iohexol Impurity 49 CAS 2992672-97-4
| CAS No. | 2992672-97-4 |
| Molecular Formula | C18H22I3N3O8 |
| Molecular Weight | 789.10 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.
As a process- or degradation-related impurity, Iohexol Impurity 49 (CAS 2992672-97-4, C18H22I3N3O8) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C18H22I3N3O8, Iohexol Impurity 49 contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, iodine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 789.10 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 Iohexol Impurity 49 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 | C18H22I3N3O8 |
| Molecular Weight | 789.10 g/mol |
| Purity | 95% |
| Storage | Store in a cool place (≤25°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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2004 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 3 |
Related Iohexol Standards
- Iohexol Impurity 26 (CAS CATO-C4X-166426)
- Iohexol Impurity 48 (CAS 2992672-98-5)
- Iohexol impurity 38 (CAS 2253945-66-1)
- Iohexol impurity 47 (CAS CATO-C4X-166447)
- Iohexol impurity 43 (CAS CATO-C4X-166443)
- Iohexol impurity 34 (CAS CATO-C4X-166434)
- Iohexol (CAS 66108-95-0)
- Iohexol Impurity 30 (CAS CATO-C4X-166430)
Recommended Standards
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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