Fezolinetant Impurity 7 CAS CATO-C4X-32707
| CAS No. | CATO-C4X-32707 |
| Molecular Formula | C16H15FN6OS |
| Molecular Weight | 358.39 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.
Fezolinetant Impurity 7 (CAS CATO-C4X-32707) is a certified pharmaceutical impurity reference standard with the molecular formula C16H15FN6OS and a molecular weight of 358.39 g/mol.
Based on its molecular formula C16H15FN6OS, Fezolinetant Impurity 7 contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 358.39 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).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
Physical & Chemical Properties
| Molecular Formula | C16H15FN6OS |
| Molecular Weight | 358.39 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 1 |
Related Fezolinetant Standards
- Fezolinetant (CAS 1629229-37-3)
- Fezolinetant Impurity 29 (CAS CATO-C4X-327029)
- Fezolinetant Impurity 9 (CAS 1629229-47-5)
- Fezolinetant Impurity 32 (CAS CATO-C4X-327032)
- Fezolinetant Impurity 18 (CAS CATO-C4X-327018)
- Fezolinetant Impurity 26 (CAS CATO-C4X-327026)
- Fezolinetant Impurity 34 (CAS CATO-C4X-327034)
- Fezolinetant Impurity 28 (CAS CATO-C4X-327028)
Recommended Standards
- Dalilesen Impurity 32 (CAS CATO-C4X-301032)
- Dimethyl Dodecanedioate (CAS 1731-79-9)
- Labetalol Impurity 49 (CAS CATO-C4X-246649)
- Columbin (CAS 546-97-4)
- Azelastine Impurity 69 (CAS CATO-C4X-139669)
- Letermovir Impurity 65 (CAS CATO-C4X-291565)
- Iopamidol EP Impurity B (CAS 77868-41-8)
- 4-Chloro-2-methyl-3-(propan-2-yl)quinoline (CAS 357951-57-6)
- 1-Cyclohexyl-2-fluoroethanone (CAS 768-04-7)
- Irbesartan Impurity 42 (CAS CATO-C4X-166642)
- (R)-1-(2-Aminoethyl)pyrrolidin-3-ol (CAS 672325-36-9)
- Trazodone Impurity 83 (CAS CATO-C4X-177283)
- (4-(Hydroxymethyl)piperidin-1-yl)(tetrahydrofuran-2-yl)methanone (CAS 1181603-11-1)
- Endo-Ala35-Tirzepatide (CAS CATO-CPTD788687)
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