Furosemide Impurity 25 CAS 2309462-39-1
| CAS No. | 2309462-39-1 |
| Molecular Formula | C12H10ClNO6S |
| Molecular Weight | 331.73 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 331.73 g/mol gives Furosemide Impurity 25 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Furosemide Impurity 25 (CAS 2309462-39-1), a pharmacopoeial impurity reference standard (molecular formula C12H10ClNO6S, MW 331.73 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, Furosemide Impurity 25 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 331.73 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 25 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 | C12H10ClNO6S |
| Molecular Weight | 331.73 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1999 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Furosemide Standards
- Furosemide Impurity 47 (CAS CATO-C4X-140247)
- Furosemide Impurity 9 (CAS CATO-C4X-14029)
- Furosemide (CAS 54-31-9)
- Furosemide EP Impurity A (CAS 4818-59-1)
- Furosemide Impurity 55 (CAS CATO-C4X-140255)
- Furosemide Impurity N3 (CAS 22893-13-6)
- Furosemide Amide Impurity (CAS 4793-47-9)
- Furosemide Impurity 48 Sodium Salt (CAS 133989-65-8（free base）)
Recommended Standards
- N-(3-Chlorophenyl)-2-(5-(3-fluorophenyl)-1,2,4-oxadiazol-3-yl)acetamide (CAS 915925-69-8)
- N-(3-Chloro-4-fluorophenyl)-8-methyl-4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carboxamide (CAS 847411-71-6)
- Cyclopentyl (chloro(phenoxy)phosphoryl)-l-alaninate (CAS 261909-90-4)
- (2E)-1-(3-Chlorothiophen-2-yl)-3-{[3-(trifluoromethyl)phenyl]amino}prop-2-en-1-one (CAS 339012-79-2)
- Pentoxifylline impurity 33 (CAS CATO-C4X-172833)
- Finerenone Impurity 63（Z-Isomer） (CAS 1870824-80-8)
- Erlotinib Impurity 98 (CAS CATO-C4X-106998)
- 1-(2-Fluoro-6-methoxy-4-(trifluoromethyl)phenyl)ethan-1-one (CAS 1823815-55-9)
- Diethyl pyridine-2,5-dicarboxylate (CAS 5552-44-3)
- 4-Amino-N,1-dimethyl-5-imidazolecarboxamide-d3 (CAS 1189466-51-0)
- Methyl 4,6-dimethylpyrimidine-5-carboxylate (CAS 832090-44-5)
- 3-(Bromomethyl)-5-phenyl-1,2,4-oxadiazole (CAS 835347-00-7)
- 4-Isopropoxycyclohexan-1-amine (CAS 54198-63-9)
- Palmitoyl Pentapeptide-4 (CAS 214047-00-4)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com