Iohexol impurity 34 CAS CATO-C4X-166434
| CAS No. | CATO-C4X-166434 |
| Molecular Formula | C17H23I3N4O9 |
| Molecular Weight | 808.10 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 808.10 g/mol gives Iohexol impurity 34 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Iohexol impurity 34 (CAS CATO-C4X-166434), a pharmacopoeial impurity reference standard (molecular formula C17H23I3N4O9, MW 808.10 g/mol) used for the identification and quantification of trace impurities in APIs.
Iohexol impurity 34 (C17H23I3N4O9) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, iodine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 certified reference material (CRM), Iohexol impurity 34 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.
Physical & Chemical Properties
| Molecular Formula | C17H23I3N4O9 |
| Molecular Weight | 808.10 g/mol |
| Purity | 97%+ |
| 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 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 4 |
Related Iohexol Standards
Recommended Standards
- Gadoteridol impurity 29 (CAS 213312-49-3)
- 1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,11,11,12,12,13,13,14,14,15,15,16,16,17,17,17-Triacontafluoroheptadecane-8,10-dione (CAS 36554-97-9)
- H-D-Phe-L-Phe-D-Leu-D-Lys-L-Lys-γ-Pip-OH (CAS CATO-CPTD788744)
- Bis(3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl) maleate (CAS 55003-96-8)
- Ilaprazole Impurity 121 (CAS 13436-43-6)
- Edoxaban impurity 132 (CAS CATO-C4X-1063132)
- Salbutamol Impurity 80 (CAS 41104-10-3)
- (3-Bromo-4-hydroxyphenyl)(isoindolin-2-yl)methanone (CAS 914298-65-0)
- Moxifloxacin Impurity 95 (CAS 71083-22-2)
- 3-(propylcarbamoyl)benzoic acid (CAS 940879-50-5)
- 5-bromo-3,4-dihydro-2H-1-benzopyran-3-amine hydrochloride (CAS 2059971-55-8)
- 1-(tert-Butylthio)-2-propyl-2H-isoindole (CAS 64807-91-6)
- 1-(3-Fluoro-5-methylphenyl)-3-methylbutan-1-one (CAS 1352210-11-7)
- Semaglutide impurity 54 (CAS CATO-C4X-222654)
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