Furosemide Impurity 19 CAS CATO-C4X-140219
| CAS No. | CATO-C4X-140219 |
| Molecular Formula | C10H10N2O5S |
| Molecular Weight | 270.26 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 Furosemide Impurity 19.
CATO supplies Furosemide Impurity 19 (CAS CATO-C4X-140219), a pharmacopoeial impurity reference standard (molecular formula C10H10N2O5S, MW 270.26 g/mol) used for the identification and quantification of trace impurities in APIs.
Furosemide Impurity 19 (C10H10N2O5S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, 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).
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.
CATO manufactures Furosemide Impurity 19 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C10H10N2O5S |
| Molecular Weight | 270.26 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Furosemide Standards
- Furosemide Impurity 17 (CAS CATO-C4X-140217)
- Furosemide EP Impurity B (CAS 2736-23-4)
- Furosemide Impurity N5 (CAS 62971-57-7)
- Furosemide Impurity 8 (CAS 41332-59-6)
- Furosemide Impurity 27 (CAS 2760-11-4)
- Furosemide Impurity 51 (CAS CATO-C4X-140251)
- Furosemide Impurity 64 (CAS 116436-17-0)
- Furosemide Impurity 44 (CAS CATO-C4X-140244)
Recommended Standards
- tert-Butyl (5-fluoro-2-methyl-4-nitrophenyl)carbamate (CAS 2655557-80-3)
- Riociguat Impurity 24 (CAS 256376-62-2)
- Tert-butyl (4-fluoro-3-nitrobenzyl)carbamate (CAS 885280-67-1)
- Bimatoprost Impurity 16 (CAS 144358-71-4)
- Pemafibrate Impurity 34 (CAS CATO-C4X-290334)
- Rimegepant Impurity 127 (CAS CATO-C4X-2487127)
- Olaparib Impurity 111 (CAS 2415448-60-9)
- Ethyl 6-chloro-3-(trifluoromethyl)picolinate (CAS 1805125-85-2)
- 2-Chloro-4-methylphenylacetic Acid (CAS 2043-83-6)
- 6-Methylindolizine (CAS 1761-11-1)
- Ethyl 4-((2-methylbenzyl)amino)butanoate (CAS 1456906-69-6)
- N'-((1H-Indol-3-yl)methylene)-2-methoxybenzohydrazide (CAS 113143-32-1)
- 1-Ethoxy-2,4-dinitrobenzene (CAS 610-54-8)
- [D-Phe22]Semaglutide (CAS CATO-C4X-2226222)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com