Iopromide Impurity 23 CAS CATO-C4X-183223
| CAS No. | CATO-C4X-183223 |
| Molecular Formula | C18H24I3N3O8 |
| Molecular Weight | 791.11 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 791.11 g/mol gives Iopromide Impurity 23 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Iopromide Impurity 23 (CAS CATO-C4X-183223), a pharmacopoeial impurity reference standard (molecular formula C18H24I3N3O8, MW 791.11 g/mol) used for the identification and quantification of trace impurities in APIs.
Iopromide Impurity 23 (C18H24I3N3O8) 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
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 | C18H24I3N3O8 |
| Molecular Weight | 791.11 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 | 3 |
Related Iopromide Standards
- Iopromide Impurity 24 (CAS 1651211-76-5)
- Iopromide (CAS 73334-07-3)
- Iopromide-[d3] (CAS 1189947-73-6)
- Iopromide EP Impurity C (Mixture of Diastereomers) (CAS 154361-52-1)
- Iopromide EP Impurity G (Mixture of Diastereomers) (CAS 154361-53-2)
- Iopromide EP Impurity B (CAS 76350-28-2)
- Iopromide impurity 15 (CAS CATO-C4X-183215)
- Iopromide EP Impurity F (Mixture of Diastereomers) (CAS 154361-54-3)
Recommended Standards
- Ioversol Impurity 12 (CAS 70894-76-7)
- Iopamidol Impurity 50 (CAS CATO-C4X-145050)
- Ioversol Impurity 18 (CAS CATO-C4X-209118)
- Iopamidol Impurity 26 (CAS CATO-C4X-145026)
- Atomoxetine EP Impurity G DiHCl (CAS 2706536-33-4)
- Methylprednisolone Impurity 53 (CAS CATO-C4X-191953)
- Oseltamivir Impurity 134 (CAS CATO-C4X-1720134)
- Methyl 5-fluoro-2-mercaptobenzoate (CAS 104456-81-7)
- (S)-1,1,1-Trifluoropent-4-en-2-amine (CAS 1241540-54-4)
- 1-(3,5-Difluorophenyl)-1H-pyrazole-3-carboxylic acid (CAS 1152534-38-7)
- 3-(Difluoromethoxy)pyridine (CAS 1209729-90-7)
- 26453-81-6 Di(3-thienyl)methanone DTXSID40341540 (CAS 26453-81-6)
- 3-(Aminomethyl)-N,N-dimethyltetrahydrofuran-3-amine (CAS 161500-02-3)
- Allo-Thr7-Tirzepatide (CAS CATO-CPTD788933)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com