Torasemide impurity 34 CAS CATO-C4X-183634
| CAS No. | CATO-C4X-183634 |
| Molecular Formula | C8H10ClNO3S |
| Molecular Weight | 235.69 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Torasemide impurity 34 (CAS CATO-C4X-183634), a pharmacopoeial impurity reference standard (molecular formula C8H10ClNO3S, MW 235.69 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Torasemide impurity 34 (C8H10ClNO3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 235.69 g/mol, it falls into the medium-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.
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 Torasemide impurity 34 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 | C8H10ClNO3S |
| Molecular Weight | 235.69 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, 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; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Torasemide Standards
- Torasemide impurity 31 (CAS CATO-C4X-183631)
- Torasemide Impurity 47 (CAS 204499-30-9)
- Torasemide impurity 33 (CAS CATO-C4X-183633)
- Torasemide impurity 37 (CAS CATO-C4X-183637)
- Torasemide EP Impurity B (CAS 72811-73-5)
- Torasemide Impurity 26 (CAS CATO-C4X-183626)
- Torasemide Impurity 27 (CAS CATO-C4X-183627)
- Torasemide Impurity 16 (CAS CATO-C4X-183616)
Recommended Standards
- Iguratimod Impurity 37 (CAS 1340086-28-3)
- Diazoxide Impurity 20 (CAS CATO-C4X-195220)
- 6-Chloro Penicillanic acid (CAS CATO-C4X-175628)
- Diazoxide impurity 7 (CAS CATO-C4X-19527)
- Afoxolaner Impurity 19 (CAS CATO-C4X-313719)
- Racecadotril EP Impurity A (CAS 507-09-5)
- Tolvaptan Impurity 8 (CAS 1432725-24-0)
- N-[2-(Tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]-1,3-propanesultam (CAS 2377587-61-4)
- 4-Oxo-2-(pyridin-4-yl)-1,4-dihydroquinoline-6-carboxylic acid (CAS 90034-54-1)
- 2-[(3-fluorophenyl)amino]pyridine-3-carboxylic acid (CAS 57978-55-9)
- 1-(5-Bromo-2-fluorophenyl)ethane-1,2-diamine hydrochloride (CAS 1089352-42-0)
- tert-Butyl 2-(cyanomethyl)benzoate (CAS 866826-16-6)
- (5-Bromopyridin-3-yl)(3-((3-(thiophen-3-yl)-1,2,4-oxadiazol-5-yl)methyl)piperidin-1-yl)methanone (CAS 1705366-93-3)
- (Ser(PO?H?)3??·???)-Tau Peptide (379-408) trifluoroacetate salt (CAS 2022956-60-9)
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