Torasemide Impurity 29 CAS CATO-C4X-183629
| CAS No. | CATO-C4X-183629 |
| Molecular Formula | C5H5ClN2O2S |
| Molecular Weight | 192.62 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.
As a process- or degradation-related impurity, Torasemide Impurity 29 (CAS CATO-C4X-183629, C5H5ClN2O2S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Torasemide Impurity 29 (C5H5ClN2O2S) contains an amide group, a sulfone group, a carboxylic acid 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. 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), Torasemide Impurity 29 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 | C5H5ClN2O2S |
| Molecular Weight | 192.62 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Torasemide Standards
- Torasemide Impurity 10 (CAS 110363-52-5)
- Torasemide Impurity 9 (CAS 110363-51-4)
- Torasemide impurity 35 (CAS CATO-C4X-183635)
- Torasemide impurity 36 (CAS CATO-C4X-183636)
- Torasemide Impurity 16 (CAS CATO-C4X-183616)
- Torasemide Impurity 30 (CAS CATO-C4X-183630)
- Torasemide impurity 37 (CAS CATO-C4X-183637)
- Torasemide impurity 33 (CAS CATO-C4X-183633)
Recommended Standards
- 4-Chloropyridine-3-sulfonamide (CAS 33263-43-3)
- 4-Chlorobenzenesulfonic Acid (CAS 98-66-8)
- Methyl 4-chloro-3-hydroxythiophene-2-carboxylate (CAS 65449-59-4)
- (2E,4E)-5-Phenylpenta-2,4-dienoyl chloride (CAS 100636-30-4)
- Dapoxetine Impurity 53 (CAS 22422-27-1)
- Indometacin Impurity 45 (CAS CATO-C4X-147045)
- Mianserin impurity 29 (CAS 147086-11-1)
- Tocopherol Impurity 4 (CAS 3808-26-2)
- 6-Methyl-2-propoxypyridine-3-carboxylic acid (CAS 1340346-64-6)
- 3H-Benzo[e]indol-1-ol (CAS 1823872-40-7)
- 2-Chloro-N-(2,6-dichloro-3-methylphenyl)acetamide (CAS 379255-40-0)
- (R)-Methyl 1-acetylpyrrolidine-2-carboxylate (CAS 114376-47-5)
- 2-chloro-6-methanesulfonylbenzamide (CAS 1443981-75-6)
- Ganirelix 1-4 peptide (CAS 208599-57-9)
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