Iodixanol Impurity 17 CAS 77203-11-3
| CAS No. | 77203-11-3 |
| Molecular Formula | C16H19ClI3N3O7 |
| Molecular Weight | 781.50 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.
Iodixanol Impurity 17 (CAS 77203-11-3) is a certified pharmaceutical impurity reference standard with the molecular formula C16H19ClI3N3O7 and a molecular weight of 781.50 g/mol.
Based on its molecular formula C16H19ClI3N3O7, Iodixanol Impurity 17 contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine/iodine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 781.50 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO manufactures Iodixanol Impurity 17 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 | C16H19ClI3N3O7 |
| Molecular Weight | 781.50 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
| Halogen Content | Cl/I-containing |
| Nitrogen Atoms | 3 |
Related Iodixanol Standards
- Iodixanol Impurity 14 (CAS 103254-70-2)
- Iodixanol Impurity 16 (CAS CATO-C4X-166316)
- Iodixanol USP Related Compound D (CAS 89797-00-2)
- Iodixanol Impurity 18 (CAS CATO-C4X-166318)
- Iodixanol Impurity 21 (CAS CATO-C4X-166321)
- Iodixanol impurity 20 (CAS 111453-49-7)
- Iodixanol Impurity 19 (CAS 134768-69-7)
- Iodixanol Impurity 5 (CAS CATO-C4X-16635)
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- Insulin Degludec Impurity 24 (CAS CATO-C4X-215724)
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