Iopamidol EP Impurity K CAS 1788899-70-6
| CAS No. | 1788899-70-6 |
| Molecular Formula | C17H23I2N3O8 |
| Molecular Weight | 651.19 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Iopamidol EP Impurity K 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.
As a process- or degradation-related impurity, Iopamidol EP Impurity K (CAS 1788899-70-6, C17H23I2N3O8) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C17H23I2N3O8, Iopamidol EP Impurity K 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 651.19 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).
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 | C17H23I2N3O8 |
| Molecular Weight | 651.19 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.) | 1994 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 3 |
Related Iopamidol Standards
- Iopamidol Impurity 48 (CAS CATO-C4X-145048)
- Iopamidol Impurity 39 (CAS CATO-C4X-145039)
- Iopamidol Impurity 40 (CAS CATO-C4X-145040)
- Iopamidol Impurity 41 (CAS CATO-C4X-145041)
- Iopamidol Impurity 32 (CAS CATO-C4X-145032)
- Iopamidol Impurity 38 (CAS CATO-C4X-145038)
- Iopamidol Impurity 55 (CAS CATO-C4X-145055)
- Iopamidol Impurity 58 (CAS CATO-C4X-145058)
Recommended Standards
- Isavuconazole Impurity 46 (CAS CATO-C4X-123646)
- Iohexol EP Impurity I (CAS 196309-19-0)
- Cholesteryl oleate (CAS 303-43-5)
- Iomeprol Impurity 6 (CAS CATO-C4X-18206)
- Furosemide Impurity 31 (CAS 4818-85-3)
- Thiamine Impurity 42 (CAS 38655-47-9)
- Avatrombopag Impurity 37 (CAS 17766-28-8)
- 3-(dimethylamino)-1-(3,4-dimethylthieno[2,3-b]thiophen-5-yl)prop-2-en-1-one (CAS 882270-00-0)
- 9,10[1',2']-Benzenoanthracene-2,3,6,7,14,15-hexacarboxylicacid,9,10-dihydro (CAS 945681-56-1)
- 3-(Methylsulfonyl)aniline hydrochloride (CAS 80213-28-1)
- 2-(2,6-Dichlorobenzenesulfonamido)propanoic acid (CAS 1008050-81-4)
- (R)-2-Amino-2-(4-chlorophenyl)ethanol hydrochloride (CAS 1391448-75-1)
- Flufiprole (CAS 704886-18-0)
- A-18-F-NH2; Morphine Modulating Neuropeptide (CAS 99588-52-0)
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