Flibanserin Impurity 17 CAS 1971858-36-2
| CAS No. | 1971858-36-2 |
| Molecular Formula | C22H24ClF3N4O |
| Molecular Weight | 452.90 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 Flibanserin Impurity 17.
Flibanserin Impurity 17 (CAS 1971858-36-2) is a certified pharmaceutical impurity reference standard with the molecular formula C22H24ClF3N4O and a molecular weight of 452.90 g/mol.
Flibanserin Impurity 17 (C22H24ClF3N4O) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C22H24ClF3N4O |
| Molecular Weight | 452.90 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 4 |
Related Flibanserin Standards
- Flibanserin Impurity 6 (CAS CATO-C4X-19816)
- Flibanserin Impurity 14 (CAS 191977-79-4)
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- Flibanserin N-Oxide (CAS CATO-C4X-19818)
- Flibanserin (CAS 167933-07-5)
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