Iobitridol Impurity 4 CAS CATO-C4X-31784
| CAS No. | CATO-C4X-31784 |
| Molecular Formula | C16H19I3N2O8 |
| Molecular Weight | 748.04 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 748.04 g/mol gives Iobitridol Impurity 4 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Iobitridol Impurity 4 (CAS CATO-C4X-31784) is a certified pharmaceutical impurity reference standard with the molecular formula C16H19I3N2O8 and a molecular weight of 748.04 g/mol.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, iodine substitution, Iobitridol Impurity 4 is typically off-white to pale yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 748.04 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C16H19I3N2O8 |
| Molecular Weight | 748.04 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 | 2 |
Related Iobitridol Standards
- Iobitridol Impurity 27 (CAS CATO-C4X-317827)
- Iobitridol Impurity 15 (CAS CATO-C4X-317815)
- Iobitridol Impurity 24 (CAS CATO-C4X-317824)
- Iobitridol Impurity 5 (CAS CATO-C4X-31785)
- Iobitridol Impurity 23 (CAS CATO-C4X-317823)
- Iobitridol Impurity 20 (CAS CATO-C4X-317820)
- Iobitridol Impurity 10 (CAS CATO-C4X-317810)
- Iobitridol Impurity 11 (CAS CATO-C4X-317811)
Recommended Standards
- Isovaleryl-Phe-Nle-Sta-Ala-Sta-OH (CAS 98092-14-9)
- 3-(((2-Aminoethoxy)(hydroxy)phosphoryl)oxy)propane-1,2-diyl distearate (CAS 4537-76-2)
- Spinetoram J (CAS 187166-40-1)
- 1,2-Distearoyl-sn-glycero-3-phosphoethanolamine (CAS 1069-79-0)
- Ivermectin EP Impurity I (4S-Isomer) (CAS CATO-C4X-19829)
- Fluticasone Impurity N13 (CAS 59860-80-9)
- Dexmedetomidine Impurity 43 (CAS CATO-C4X-123043)
- N-((Hexahydro-2H-furo[2,3-c]pyrrol-6a-yl)methyl)acetamide (CAS 155448-57-0)
- 2-Chloro-4-(difluoromethyl)pyrimidine (CAS 1261629-31-5)
- Methyl 1-(difluoromethyl)-1H-pyrazole-3-carboxylate (CAS 1310351-03-1)
- 4-Methoxy-3-[(naphthalen-2-yloxy)methyl]benzaldehyde (CAS 438531-00-1)
- 2-(Bromomethyl)-4-fluoro-1-(trifluoromethyl)benzene (CAS 239135-48-9)
- 3-(3-Chlorophenyl)-5-(thiophen-2-yl)-1H-1,2,4-triazole (CAS 1284384-52-6)
- (Asp28)-Exenatide trifluoroacetate salt (CAS 1678417-24-7)
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