Furosemide Impurity 53 CAS CATO-C4X-140253
| CAS No. | CATO-C4X-140253 |
| Molecular Formula | C17H15N5O8S |
| Molecular Weight | 449.39 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Furosemide Impurity 53 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.
CATO supplies Furosemide Impurity 53 (CAS CATO-C4X-140253), a pharmacopoeial impurity reference standard (molecular formula C17H15N5O8S, MW 449.39 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Furosemide Impurity 53 (C17H15N5O8S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 449.39 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C17H15N5O8S |
| Molecular Weight | 449.39 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 |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |
Related Furosemide Standards
- Furosemide Impurity 25 (CAS CATO-C4X-140235)
- Furosemide Impurity 26 (CAS CATO-C4X-140236)
- Furosemide Impurity 40 (CAS 2309465-74-3)
- Furosemide acyl-β-D-glucuronide (CAS 72967-59-0)
- Furosemide EP Impurity D (CAS 5046-19-5)
- Furosemide Impurity 62 (CAS CATO-C4X-140262)
- Furosemide Impurity 63 (CAS CATO-C4X-140263)
- Furosemide Impurity 61 (CAS CATO-C4X-140261)
Recommended Standards
- 2-{[(2,6-dichlorophenyl)methyl]sulfanyl}-4,5-diphenyl-1-(prop-2-yn-1-yl)-1H-imidazole (CAS 339277-25-7)
- 1-(2,4-Difluorophenyl)-7-(3,5-dimethylpiperazin-1-yl)-6,8-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 182869-08-5)
- 2-((4-Allyl-5-(thiophen-2-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(4-bromo-2-methylphenyl)acetamide (CAS 575461-00-6)
- 1-(2,4-Difluorophenyl)-7-(4-ethylpiperazin-1-yl)-6,8-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 182869-10-9)
- Fluticasone Propionate EP Impurity J (CAS CATO-C4X-165019)
- Cephalexin Impurity 33 (CAS 883835-57-2)
- Upadacitinib Impurity 143 (CAS CATO-C4X-2405143)
- 1-(4-Bromomethyl-2-thiazoyl)guanidine, Hydrobromide Salt Discontinued See: C369545 (CAS 204693-12-9)
- 1-(1,5-Dimethyl-1H-pyrazol-3-yl)-2,2,2-trifluoroethan-1-ol (CAS 2228136-05-6)
- N-(4,6-dimethylpyrimidin-2-yl)cinnamamide (CAS 328119-33-1)
- Benzyl (1-(2-aminoacetyl)pyrrolidin-3-yl)(cyclopropyl)carbamate (CAS 1353957-53-5)
- 2-Propenoic acid, 2-methyl-, polymer with ethyl 2-propenoate, N-(hydroxymethyl)-2-propenamide and methyl 2-methyl-2-propenoate (CAS 25639-14-9)
- 1-(3-Chlorophenyl)-3-(p-tolyl)-1H-pyrazol-5-amine (CAS 618098-27-4)
- (D-Ala1)-Peptide T amide (CAS 106362-34-9)
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