Vonoprazan Impurity 161 CAS CATO-C4X-1020161
| CAS No. | CATO-C4X-1020161 |
| Molecular Formula | C16H14FN3O2S |
| Molecular Weight | 331.36 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution, Vonoprazan Impurity 161 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 331.36 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Vonoprazan Impurity 161 (CAS CATO-C4X-1020161) is a certified pharmaceutical impurity reference standard with the molecular formula C16H14FN3O2S and a molecular weight of 331.36 g/mol.
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 | C16H14FN3O2S |
| Molecular Weight | 331.36 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Vonoprazan Standards
- Vonoprazan Impurity 165 (CAS CATO-C4X-1020160)
- Vonoprazan Impurity 299 (CAS CATO-C4X-1020299)
- Vonoprazan Impurity 43 (CAS 2169271-28-5)
- Vonoprazan Impurity 151 (CAS CATO-C4X-1020151)
- Vonoprazan Fumarate Impurity 41 (CAS CATO-C4X-102041)
- Vonoprazan Impurity 42 (CAS CATO-C4X-102042)
- Vonoprazan Fumarate Impurity 5 (CAS 881677-11-8)
- Vonoprazan Impurity 64 (CAS 928324-73-6)
Recommended Standards
- BIBR 1532 (CAS 321674-73-1)
- Papaverine Impurity 37 (CAS 1207386-32-0)
- Trimethobenzamide Impurity 4 (CAS 346704-37-8)
- Dihydrocodeine impurity 1 (CAS 23185-97-9)
- Ceftolozane Impurity 10 (CAS CATO-C4X-240610)
- Brexpiprazole Impurity 65 (CAS 2247155-48-0)
- Docusate Sodium Impurity 5 (CAS 115960-17-3)
- 1-(1H-[1,2,4]Triazolo[4,3-b][1,2,4]triazol-1-yl)ethanone (CAS 56424-48-7)
- 1-((2-Methylthiazol-4-yl)methyl)piperidin-4-ol (CAS 1247446-43-0)
- N-allyl-2,3-dichloro-4-(ethylsulfonyl)benzamide (CAS 477867-72-4)
- 5-Fluoro-2-(pyrazolo[1,5-a]pyrazin-3-yl)pyrimidin-4-ol (CAS 1330044-14-8)
- Deethylphosphamidon (CAS 13171-22-7)
- 3-Bromo-4-methyl-5-(trifluoromethyl)benzamide (CAS 2386432-21-7)
- (Tyr9)-Cholecystokinin Octapeptide (sulfated) (H-9770.0005) (CAS 96607-61-3)
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