Cinacalcet Impurity 91 CAS CATO-C4X-105991
| CAS No. | CATO-C4X-105991 |
| Molecular Formula | C17H17F3O3S |
| Molecular Weight | 358.38 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 358.38 g/mol gives Cinacalcet Impurity 91 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Cinacalcet Impurity 91 (CAS CATO-C4X-105991, C17H17F3O3S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Cinacalcet Impurity 91 (C17H17F3O3S) contains a steroid core, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C17H17F3O3S |
| Molecular Weight | 358.38 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
Related Cinacalcet Standards
- Cinacalcet Impurity 90 (CAS CATO-C4X-105990)
- Cinacalcet Impurity 34 (CAS 1025064-33-8)
- (R)-Cinacalcet-D3 (CAS 226256-56-0)
- Ent-Cinacalcet Hydrochloride (CAS 694495-47-1)
- Cinacalcet Impurity 54 (CAS 1622203-34-2)
- Cinacalcet Impurity 92 (CAS CATO-C4X-105992)
- Cinacalcet Impurity 97 (CAS CATO-C4X-105997)
- Cinacalcet 7,8-Dihydro Racemate Base (CAS 802918-46-3)
Recommended Standards
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- 914777-33-6 Oxazolidinone Dimer Impurity (CAS 914777-33-6)
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- 2-Fluoro-[1,1'-biphenyl]-4-yl 4-methoxybenzene-1-sulfonate (CAS 477857-16-2)
- Bifendate Impurity 2 (CAS CATO-C4X-25552)
- Baricitinib Impurity 122 (CAS CATO-C4X-2260122)
- Crisaborole impurity 150 (CAS CATO-C4X-2021150)
- 4-(4-Fluorophenyl)-1,2,3-thiadiazole (CAS 40788-81-6)
- (3-Bromophenyl)(4-(tert-butyl)phenyl)methanone (CAS 132885-82-6)
- 3-(Methylsulfonyl)-9-oxa-3,7-diazabicyclo[3.3.1]Nonane (CAS 1422140-49-5)
- Moxifloxacin Impurity 44 (CAS 112811-70-8)
- (E)-3-Methyl-4-phenylbut-3-en-2-one (CAS 42968-14-9)
- Pazopanib Impurity 7 (CAS CATO-C4X-17257)
- D-Ala18-Tirzepatide (CAS CATO-CPTD788916)
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