Furosemide Impurity 45 CAS CATO-C4X-140245
| CAS No. | CATO-C4X-140245 |
| Molecular Formula | C9H8Cl2O5S |
| Molecular Weight | 299.13 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Furosemide Impurity 45 (CAS CATO-C4X-140245) is a certified pharmaceutical impurity reference standard with the molecular formula C9H8Cl2O5S and a molecular weight of 299.13 g/mol.
Based on its molecular formula C9H8Cl2O5S, Furosemide Impurity 45 contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 299.13 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).
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 certified reference material (CRM), Furosemide Impurity 45 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 | C9H8Cl2O5S |
| Molecular Weight | 299.13 g/mol |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Furosemide Standards
- Furosemide Impurity 31 (CAS 4818-85-3)
- Furosemide Impurity 16 (CAS 3740-18-9)
- Furosemide Impurity 26 (CAS CATO-C4X-140226)
- Furosemide Impurity 55 (CAS 76852-02-3)
- Furosemide Impurity 50 (CAS CATO-C4X-140250)
- Furosemide Impurity 14 (CAS 133989-65-8)
- Furosemide Impurity 15 (CAS CATO-C4X-140215)
- Furosemide Impurity 58 (CAS 2470439-95-1)
Recommended Standards
- N-(5-Amino-2-fluorophenyl)-3,5-dichlorobenzamide (CAS 926255-27-8)
- N,1,1,1-Tetrafluoro-N-((trifluoromethyl)sulfonyl)methanesulfonamide (CAS 108388-06-3)
- N-(5-Amino-2-fluorophenyl)-2,4-dichlorobenzamide (CAS 926225-90-3)
- 2-(5-Bromo-2-fluorophenyl)-2-(morpholin-4-yl)acetonitrile (CAS 1157264-67-9)
- Selexipag Impurity 11 (CAS CATO-C4X-196111)
- Racecadotril Impurity 28 (CAS CATO-C4X-110628)
- Posaconazole Impurity 60 (CAS CATO-C4X-1208160)
- 2-Chloro-N-cyclopropyl-N-(4-dimethylamino-cyclohexyl)-acetamide (CAS 1353997-98-4)
- 4-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-4h-1,2,4-triazole-3-thiol (CAS 959575-58-7)
- 1,2-Difluoro-4-(methoxymethoxy)-3-methylbenzene (CAS 2504204-26-4)
- 2-((Pyridin-2-ylmethyl)amino)ethan-1-ol (CAS 6636-71-1)
- 6-Bromo-3-hydroxy-4-oxo-1,4-dihydropyridine-2-carboxylic acid (CAS 2147483-69-8)
- Alcaftadine Carboxylic Acid-d3 (CAS 1795019-71-4)
- Peptide-GMF (CAS CATO-CPTD788469)
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