Dimetindene EP Impurity G CAS 803617-18-7
| CAS No. | 803617-18-7 |
| Molecular Formula | C19H21N |
| Molecular Weight | 263.38 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Dimetindene EP Impurity G.
Dimetindene EP Impurity G (CAS 803617-18-7) is a certified pharmaceutical impurity reference standard with the molecular formula C19H21N and a molecular weight of 263.38 g/mol.
Dimetindene EP Impurity G (C19H21N) contains a nitrogen-containing heterocyclic scaffold, a nitrile group. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C19H21N |
| Molecular Weight | 263.38 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 1 |
Related Dimetindene Standards
- Dimetindene EP Impurity C HCl (CAS 2469735-79-1)
- Dimetindene EP Impurity C (CAS 92726-29-9)
- Dimetindene EP Impurity I (CAS 151562-10-6)
- Dimetindene EP Impurity H (CAS 1346597-95-2)
- Dimetindene EP Impurity D (CAS 1613-23-6)
- Dimetindene Impurity 6 (CAS CATO-C4X-21556)
- Dimetindene Impurity 10 (CAS 121379-67-7)
- Dimetindene Maleate EP Impurity B (CAS 92039-36-6)
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