Pantoprazole Impurity 44 CAS CATO-C4X-139944
| CAS No. | CATO-C4X-139944 |
| Molecular Formula | C32H28F4N6O6S2 |
| Molecular Weight | 732.72 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Pantoprazole Impurity 44.
Pantoprazole Impurity 44 (CAS CATO-C4X-139944) is a certified pharmaceutical impurity reference standard with the molecular formula C32H28F4N6O6S2 and a molecular weight of 732.72 g/mol.
Based on its molecular formula C32H28F4N6O6S2, Pantoprazole Impurity 44 contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 732.72 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C32H28F4N6O6S2 |
| Molecular Weight | 732.72 g/mol |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 20.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 2 |
Related Pantoprazole Standards
- Pantoprazole EP Impurity E (CAS 2115779-15-0)
- Pantoprazole Impurity 25 (CAS 1797132-60-5)
- Pantoprazole Impurity 77 (CAS 867300-67-2)
- Pantoprazole Impurity 38 (CAS 957470-59-6)
- Pantoprazole Impurity 3 (CAS 957470-58-5)
- Pantoprazole Impurity 65 (CAS CATO-C4X-139965)
- Pantoprazole impurity 60 (CAS CATO-C4X-139960)
- Pantoprazole Impurity 43 (CAS 1203557-78-1)
Recommended Standards
- Pigment Yellow 180 (CAS 77804-81-0)
- 4,4',4",4'"-(Perylene-2,5,8,11-tetrayl)tetrabenzoic acid (CAS 1885094-82-5)
- Roxadustat Impurity 84 (CAS CATO-C4X-221384)
- Spiro[fluorene-9,9'-xanthene]-2,7-diylbis(diphenylphosphineoxide) (CAS 1346002-81-0)
- Betahistine Impurity 17 (CAS CATO-C4X-183817)
- Irinotecan EP Impurity M DiHCl (CAS CATO-C4X-166713)
- Phytomenadione/Vitamin K1 Impurity 80 (CAS CATO-C4X-220780)
- 2-Chloro-3,5,6-trifluoropyridine (CAS 344324-99-8)
- 1-Ethyl-5-methoxy-2-methyl-1H-benzo[d]imidazole (CAS 82612-26-8)
- O-benzoyl-N-(tert-butyl)hydroxylamine hydrochloride (CAS 66809-86-7)
- 5-(Benzenesulfonyl)-4-(2,4-dichlorophenyl)-2-methylpyrimidine (CAS 339107-88-9)
- Tetrabromobisphenol S Dimethyl Ether (CAS 70156-79-5)
- Lithium Nonafluoro-1-butanesulfonate (CAS 131651-65-5)
- Semaglutide impurity 27 (CAS CATO-C4X-222627)
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