Cinepazide Impurity 4 CAS 54063-23-9
| CAS No. | 54063-23-9 |
| Molecular Formula | C18H24N2O6 |
| Molecular Weight | 364.39 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Cinepazide Impurity 4 (CAS 54063-23-9) is a certified pharmaceutical impurity reference standard with the molecular formula C18H24N2O6 and a molecular weight of 364.39 g/mol.
Structurally, Cinepazide Impurity 4 (C18H24N2O6) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 364.39 g/mol, it falls into the moderately-high-molecular-weight range. 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.
Physical & Chemical Properties
| Molecular Formula | C18H24N2O6 |
| Molecular Weight | 364.39 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°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 |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
| Nitrogen Atoms | 2 |
Related Cinepazide Standards
- Cinepazide Impurity 13 (CAS 88133-87-3)
- Cinepazide Impurity 1 (CAS 88197-50-6)
- Cinepazide Impurity 3 (CAS CATO-C4X-18153)
- Cinepazide Impurity 10 (CAS 53792-97-5)
- Cinepazide Impurity 2 (CAS 1227926-25-1)
- Cinepazide Impurity 12 (CAS 10263-19-1)
- Cinepazide Impurity 6 (CAS 20329-98-0)
- Cinepazide Impurity 9 (CAS 1352050-81-7)
Recommended Standards
- Neomycin EP Impurity B (CAS 54617-39-9)
- Levofloxacin-d3 (CAS CATO-C4X-137150)
- Ofloxacin-D3 (CAS 1173147-91-5)
- rac O-Demethyl Ambrisentan (CAS 1106685-85-1)
- Fenbufen Impurity 6 (CAS 6918-68-9)
- Levodopa EP Impurity C (CAS 7636-26-2)
- Gonadorelin impurity 4 (CAS CATO-C4X-23544)
- Cefditoren Impurity 7 (CAS 155723-02-7)
- Potassium (2,2-difluoro-3,3-dimethylcyclopropyl)trifluoroborate (CAS 2416056-32-9)
- 2-Methoxy-6-(trifluoromethyl)pyrimidine-4-carbaldehyde (CAS 944901-82-0)
- 2-Cyclopentylpentanoic acid (CAS 5732-83-2)
- 5-(chloromethyl)-1-(2-fluoroethyl)-1H-1,2,4-triazole hydrochloride (CAS 1803592-97-3)
- Ethyl 2-pentanamidothiazole-4-carboxylate (CAS 391219-72-0)
- Semaglutide impurity 196 (CAS CATO-C4X-2226196)
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