Torasemide Impurity 24 CAS CATO-C4X-183624
| CAS No. | CATO-C4X-183624 |
| Molecular Formula | C17H20N4O4S |
| Molecular Weight | 376.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Torasemide Impurity 24 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.
CATO supplies Torasemide Impurity 24 (CAS CATO-C4X-183624), a pharmacopoeial impurity reference standard (molecular formula C17H20N4O4S, MW 376.43 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Torasemide Impurity 24 (C17H20N4O4S) 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 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 376.43 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 | C17H20N4O4S |
| Molecular Weight | 376.43 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Torasemide Standards
- Torasemide Impurity 42 (CAS CATO-C4X-183642)
- Torasemide Impurity 43 (CAS CATO-C4X-183643)
- Torasemide Impurity 46 (CAS CATO-C4X-183646)
- Torasemide Impurity 11 (CAS 113844-99-8)
- Torasemide Impurity 13 (CAS CATO-C4X-183613)
- Torasemide Impurity 15 (CAS CATO-C4X-183615)
- Torasemide Impurity 12 (CAS 99300-68-2)
- Torasemide Impurity 28 (CAS 58154-83-9)
Recommended Standards
- Vardenafil Impurity 39 (CAS 2580939-41-7)
- Pivmecillinam Impurity 13 (CAS CATO-C4X-232313)
- tert-Butyl 2-(triphenylphosphoranylidene)acetate (CAS 35000-38-5)
- ethoxyacetyl chloride (CAS 14077-58-8)
- Prilocaine impurity 49 (CAS CATO-C4X-193449)
- Furosemide Impurity N5 (CAS 62971-57-7)
- Olaparib Impurity 148 (CAS CATO-C4X-1135148)
- 4-Bromo-2-fluoro-3-methoxy-6-nitrophenylboronic acid (CAS 2377606-74-9)
- 4-Methyl-8-quinoxalinesulfonyl Chloride (CAS 13982-84-8)
- Dapagliflozin Impurity 199 (CAS CATO-C4X-1138199)
- 5-Methyl-4,5-dihydro-3H-spiro[benzo[b][1,4]oxazepine-2,4'-piperidine] (CAS 1298175-44-6)
- 1,3-Dihydro-4-(2-iodoethyl)-2H-indol-2-one (CAS 168476-60-6)
- Ethyl 3-bromo-5-(bromomethyl)benzoate (CAS 1261826-04-3)
- Semaglutide impurity 30 (CAS CATO-C4X-222630)
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