Tolvaptan Impurity 22 CAS CATO-C4X-195522
| CAS No. | CATO-C4X-195522 |
| Molecular Formula | C25H24N2O3 |
| Molecular Weight | 400.47 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Tolvaptan Impurity 22 (CAS CATO-C4X-195522) is a certified pharmaceutical impurity reference standard with the molecular formula C25H24N2O3 and a molecular weight of 400.47 g/mol.
Based on its molecular formula C25H24N2O3, Tolvaptan Impurity 22 contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 400.47 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), Tolvaptan Impurity 22 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C25H24N2O3 |
| Molecular Weight | 400.47 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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 |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Tolvaptan Standards
- Tolvaptan Impurity 76 (CAS 2458812-63-8)
- Tolvaptan Impurity 6 (CAS 137976-61-5)
- Tolvaptan Impurity 64 (CAS CATO-C4X-195564)
- Tolvaptan Impurity 72 (CAS CATO-C4X-195572)
- Tolvaptan Impurity 129 (CAS 1448365-49-8)
- Tolvaptan Impurity 118 (CAS CATO-C4X-1955118)
- Tolvaptan Impurity 124 (CAS CATO-C4X-1955124)
- Tolvaptan Impurity 89 (CAS 137977-65-2)
Recommended Standards
- Pomalidomide Impurity 42 (CAS 1957236-36-0)
- Vinorelbine Impurity 20 (CAS CATO-C4X-264220)
- Netupitant Impurity 38 (CAS CATO-C4X-122338)
- Abemaciclib Impurity 57 (CAS CATO-C4X-293757)
- Lusutrombopag Impurity 23 (CAS CATO-C4X-208423)
- Losartan Impurity 49 (CAS CATO-C4X-168349)
- Tadalafil Impurity 86 HCl (CAS CATO-C4X-108786)
- Perindopril Impurity 24 (CAS 145513-32-2)
- 4-Fluoro-2-iodo-N-(prop-2-yn-1-yl)benzamide (CAS 1427919-30-9)
- N-benzyl-3-methylcyclohexan-1-amine (CAS 343953-86-6)
- O6-(2-Hydroxy-1-methylethyl)-2-deoxyguanosine (CAS 1327339-21-8)
- 1-(5-Ethylthiophen-2-yl)ethan-1-one (CAS 18761-46-1)
- 2-(acetylamino)-4-amino-2,4,6-trideoxy-alpha-D-Galactopyranose (CAS 1644434-29-6)
- Des-Gln19-Tirzepatide (CAS CATO-CPTD788954)
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