Vonoprazan Fumarate Impurity 77 CAS CATO-C4X-102077
| CAS No. | CATO-C4X-102077 |
| Molecular Formula | C16H13ClFN3O2S |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 481.88 g/mol gives Vonoprazan Fumarate Impurity 77 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Vonoprazan Fumarate Impurity 77 (CAS CATO-C4X-102077, C16H13ClFN3O2SC4H4O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Vonoprazan Fumarate Impurity 77 (C16H13ClFN3O2SC4H4O4) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
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 | C16H13ClFN3O2S C4H4O4 |
| Molecular Weight | 481.88 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Vonoprazan Standards
- Vonoprazan Impurity 298 (CAS 103860-56-6)
- Vonoprazan Impurity 82 (CAS 106058-86-0)
- Vonoprazan Fumarate Impurity 71 (CAS 1060802-18-7)
- Vonoprazan Impurity 129 (CAS 109-00-2)
- Vonoprazan Impurity 188 (CAS 111480-82-1)
- Vonoprazan Impurity 195 (CAS 1126403-28-8)
- Vonoprazan Impurity 10 (CAS 122453-85-4)
- Vonoprazan Impurity 89 (CAS 1224739-02-9)
Recommended Standards
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- 3-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)benzoyl chloride (CAS 1181329-14-5)
- Brimonidine Impurity 23 (CAS CATO-C4X-156623)
- Hepcidin/LEAP-1 (Human); Liver-Expressed Antimicrobial Peptide (CAS 342790-21-0)
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