Flupentixol EP Impurity A CAS 23904-98-5
| CAS No. | 23904-98-5 |
| Molecular Formula | C22H29ClN2OS |
| Molecular Weight | N/A |
| 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 Flupentixol EP Impurity A (CAS 23904-98-5), a certified reference material (molecular formula C22H29ClN2OSC2H2O4, MW 495.03 g/mol) for analytical method development and quality control.
Based on its molecular formula C22H29ClN2OSC2H2O4, Flupentixol EP Impurity A contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 495.03 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C22H29ClN2OS 2*C2H2O4 |
| Molecular Weight | 495.03 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Flupentixol Standards
- Flupentixol Impurity 21 (CAS 107265-28-1)
- Flupentixol Impurity 22 (CAS 129722-10-7)
- Flupentixol Impurity 1 (CAS 1535-17-7)
- Flupentixol Impurity 20 (CAS 1581762-35-7)
- Flupentixol Dihydrochloride EP Impurity G (CAS 1693-28-3)
- Flupentixol Impurity N96 (CAS 2244985-34-8)
- Flupentixol EP Impurity A Enantiomer (CAS 2340-57-0)
- Flupentixol DiHCl (CAS 2413-38-9)
Recommended Standards
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