Indapamide Impurity 50 CAS CATO-C4X-140050
| CAS No. | CATO-C4X-140050 |
| Molecular Formula | C16H14Cl2N2O3S |
| Molecular Weight | 385.26 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.
Indapamide Impurity 50 (CAS CATO-C4X-140050) is a certified pharmaceutical impurity reference standard with the molecular formula C16H14Cl2N2O3S and a molecular weight of 385.26 g/mol.
Indapamide Impurity 50 (C16H14Cl2N2O3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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 | C16H14Cl2N2O3S |
| Molecular Weight | 385.26 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Indapamide Standards
- Indapamide Impurity 23 (CAS CATO-C4X-140023)
- Indapamide Impurity 8 (CAS 126750-70-7)
- Indapamide Impurity 24 (CAS CATO-C4X-140024)
- Indapamide Impurity 27 (CAS CATO-C4X-140027)
- Indapamide Impurity 28 (CAS CATO-C4X-140028)
- Indapamide Impurity 30 (CAS 77083-53-5)
- Indapamide Impurity 31 (CAS 77083-52-4)
- Indapamide (CAS 26807-65-8)
Recommended Standards
- N'-[(E)-3-(2,4-Dichlorophenyl)-2-propenoyl]-4-methylbenzenesulfonohydrazide (CAS 478041-75-7)
- 5'-Bromo-4-(ethylsulfonyl)-2,2'-dimethoxy-1,1'-biphenyl (CAS 1614246-67-1)
- N-(2-(1H-Indol-3-yl)ethyl)-3,5-dichloro-4-hydroxybenzenesulfonamide (CAS 646040-54-2)
- 1-[(3,4-Dichlorophenyl)methyl]-N-[(methylcarbamothioyl)amino]-2-oxo-1,2-dihydropyridine-3-carboxamide (CAS 337928-63-9)
- Calcitonin Impurity 20 (CAS CATO-C4X-221820)
- Atrasentan Impurity 169 (CAS 1059043-50-3)
- Rivaroxaban Impurity 2 (CAS 1365267-36-2)
- (2-Fluoro-5-(phenylcarbamoyl)phenyl)boronic acid (CAS 874289-41-5)
- Ethyl 2-chloro-6-fluoro-3-methylbenzoate (CAS 773135-50-5)
- Tert-butyl 8-formyl-5-azaspiro[2.5]Octane-5-carboxylate (CAS 2411639-63-7)
- Irinotecan Impurity 52-D5 (CAS 718612-51-2)
- 3-Methyl-4-thiomorpholinomethyl benzophenone (CAS 898782-25-7)
- (5-Chloro-2-hydroxy-4-methylphenyl)thiourea (CAS 1820705-08-5)
- Des-Ile27-Tirzepatide (CAS CATO-CPTD788946)
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