Tolvaptan Impurity 59 CAS CATO-C4X-195559
| CAS No. | CATO-C4X-195559 |
| Molecular Formula | C34H29ClN2O4 |
| Molecular Weight | 565.06 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.
Tolvaptan Impurity 59 (CAS CATO-C4X-195559) is a certified pharmaceutical impurity reference standard with the molecular formula C34H29ClN2O4 and a molecular weight of 565.06 g/mol.
The molecular framework of Tolvaptan Impurity 59 (C34H29ClN2O4) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C34H29ClN2O4 |
| Molecular Weight | 565.06 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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) | 21.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Tolvaptan Standards
- Tolvaptan Impurity 58 (CAS CATO-C4X-195558)
- Tolvaptan impurity 115 (CAS CATO-C4X-1955115)
- Tolvaptan Impurity 85 (CAS CATO-C4X-195585)
- Tolvaptan Impurity 101 (CAS CATO-C4X-1955101)
- Tolvaptan Impurity 94 (CAS CATO-C4X-195594)
- Tolvaptan Impurity 102 (CAS CATO-C4X-1955102)
- Tolvaptan Impurity 103 (CAS CATO-C4X-1955103)
- Tolvaptan Impurity 95 (CAS CATO-C4X-195595)
Recommended Standards
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- Tinidazole EP Impurity B (CAS 25459-12-5)
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- 4-(2,3,4-Trimethoxyphenyl)butan-2-one (CAS 53581-90-1)
- 3-Methylbenzo[d]isothiazol-5-amine (CAS 73437-03-3)
- Hexapeptide-9 (CAS 1228371-11-6)
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