Iopromide Impurity 18 CAS 76350-03-3
| CAS No. | 76350-03-3 |
| Molecular Formula | C11H6Cl2I3NO4 |
| Molecular Weight | 667.79 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO supplies Iopromide Impurity 18 (CAS 76350-03-3), a certified reference material (molecular formula C11H6Cl2I3NO4, MW 667.79 g/mol) for analytical method development and quality control.
Iopromide Impurity 18 (C11H6Cl2I3NO4) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine/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).
CATO manufactures Iopromide Impurity 18 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 | C11H6Cl2I3NO4 |
| Molecular Weight | 667.79 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| 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.) | 1978 |
| Halogen Content | Cl/I-containing |
| Nitrogen Atoms | 1 |
Related Iopromide Standards
- Iopromide Impurity 9 (CAS 111453-32-8)
- Iopromide Impurity 11 (CAS CATO-C4X-183211)
- Iopromide EP Impurity H (CAS 185459-57-8)
- Iopromide EP Impurity A (CAS 154361-51-0)
- Iopromide impurity 16 (CAS CATO-C4X-183216)
- Iopromide Impurity 28 (CAS CATO-C4X-183228)
- Iopromide EP Impurity B (CAS 76350-28-2)
- Iopromide Impurity 30 (CAS CATO-C4X-183230)
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- Boc-L-His(Trt)-Aib-Aib-OH (CAS CATO-CPTD788309)
- 1,2,2-Trimethylcyclobutane-1,3-diol (CAS 2231673-24-6)
- Rp-8-pCPT-cGMPS sodium (CAS 208445-07-2)
- Gold, (2-chloroacetamidato-N)(triphenylphosphine)- (CAS 117199-34-5)
- tert-Butyl(2S,6R)-6-amino-5-oxo-(2-thienyl)perhydro-1,4-thiazepine-4-acetate (CAS 112968-38-4)
- methyl 2-methoxy-2-phenylacetate (CAS 3558-61-0)
- (E)-1,4-di-p-tolylbut-2-ene-1,4-dione (CAS 17342-09-5)
- 3-Cyano-5-methyl-N-(4-(trifluoromethyl)phenyl)isoxazole-4-carboxamide (CAS 400074-24-0)
- 3-(1h-1,3-Benzodiazol-1-yl)propan-1-amine dihydrochloride (CAS 1177324-11-6)
- (5-Bromofuran-2-yl)(1,4-diazepan-1-yl)methanone hydrochloride (CAS 1606999-00-1)
- Semaglutide impurity 45 (CAS CATO-C4X-222645)
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