Iomeprol Impurity 7 CAS CATO-C4X-18207
| CAS No. | CATO-C4X-18207 |
| Molecular Formula | C17H23I2N3O8 |
| Molecular Weight | 651.19 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.
CATO supplies Iomeprol Impurity 7 (CAS CATO-C4X-18207), a pharmacopoeial impurity reference standard (molecular formula C17H23I2N3O8, MW 651.19 g/mol) used for the identification and quantification of trace impurities in APIs.
Iomeprol Impurity 7 (C17H23I2N3O8) 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
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 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 3 |
Related Iomeprol Standards
- Iomeprol Impurity 6 (CAS CATO-C4X-18206)
- Iomeprol Impurity 1 (CAS 196309-10-1)
- Iomeprol Impurity 18 (CAS CATO-C4X-182018)
- Iomeprol Impurity 10 (CAS CATO-C4X-182010)
- Iomeprol Impurity 9 (CAS CATO-C4X-18209)
- Iomeprol Impurity 15 (CAS CATO-C4X-182015)
- Iomeprol Impurity 5 (CAS CATO-C4X-18205)
- Iomeprol Impurity 23 (CAS CATO-C4X-182023)
Recommended Standards
- (<I>S</I>,<I>R</I>,<I>S</I>)-AHPC-PEG<SUB>2</SUB>-butyl chloride (CAS 1835705-57-1)
- Iohexol EP Impurity I (CAS 196309-19-0)
- Dichlorobis(triphenylphosphine)iron(II) (CAS 19543-98-7)
- Iopamidol EP Impurity K (CAS 1788899-70-6)
- Paclitaxel EP Impurity N (CAS 27548-93-2)
- Roxadustat Impurity 171 (CAS CATO-C4X-2213171)
- Glycerol Impurity N4 (CAS 14236-12-5)
- 2-(Pyrrolidin-1-yl)-6-(trifluoromethyl)pyridine (CAS 1346534-56-2)
- 1-(2-Methyl-6-(pyrrolidin-1-yl)pyridin-3-yl)propan-1-one (CAS 1355224-84-8)
- Methyl 4-amino-6-methylheptanoate (CAS 1339727-62-6)
- 1-bromo-8-ethyl-naphthalene (CAS 2206741-04-8)
- 2-((4,6-Bis((2-nitrophenyl)amino)-1,3,5-triazin-2-yl)amino)acetic acid (CAS 65052-16-6)
- 6-Methoxy-5-methyl-pyridin-3-ylamine dihydrochloride (CAS 1187929-66-3)
- Myristoyl Pentapeptide -4 acetate (CAS 959610-30-1(free base))
Why CATO?
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