Torsemide Impurity 28 CAS 54696-69-4
| CAS No. | 54696-69-4 |
| Molecular Formula | C12H11N3O2 |
| Molecular Weight | 229.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Torsemide Impurity 28 is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Torsemide Impurity 28 (CAS 54696-69-4), a certified reference material (molecular formula C12H11N3O2, MW 229.23 g/mol) for analytical method development and quality control.
Torsemide Impurity 28 (C12H11N3O2) contains an amino-acid-derived structure, an amide 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. 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 analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Torsemide Impurity 28 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 | C12H11N3O2 |
| Molecular Weight | 229.23 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
| Nitrogen Atoms | 3 |
Related Torsemide Standards
Recommended Standards
- tert-Butyl5-methyl-2,6-dioxo-1,3-oxazinane-3-carboxylate (CAS 357610-32-3)
- Tryptophan Cyclized Impurity (CAS 40856-80-2)
- tert-Butyl4-methyl-2,6-dioxo-1,3-oxazinane-3-carboxylate (CAS 357610-31-2)
- 1-(2,3-dihydro-1-benzofuran-5-yl)-2-(1H-1,2,4-triazol-1-yl)-1-ethanone 866008-63-1 KS-00003OPA (CAS 866008-63-1)
- 2,2-Difluoroethyl ethyl carbonate (CAS 916678-14-3)
- 2931-08-0 Prephenic acid barium salt barium (1r,4r)-1-(2-carboxylato-2-oxoethyl)-4-hydroxycyclohexa-2,5-dienecarboxylate (CAS 2931-08-0)
- 1-(9-Chloro-3,4-dihydro-2h-benzo[b][1,4]dioxepin-7-yl)-N-methylmethanamine (CAS 1152547-07-3)
- (S)-2-amino-3-methyl-N-propylbutanamide (CAS 368424-93-5)
- 1-Aminoindole (CAS 53406-38-5)
- 5-Chloroquinolin-8-yl (2,5-dichlorophenyl)carbamate (CAS 21617-09-4)
- Nintedanib Impurity 2 (CAS 2410284-90-9)
- 7-chloro-3-isopropyl-5-methylsulfanyl-1H-pyrazolo[4,3-d]pyrimidine (CAS 1289139-31-6)
- 4-Nitro-7-phenoxybenzo[c][1,2,5]oxadiazole (CAS 16597-10-7)
- Des-Ala35-Tirzepatide (CAS CATO-CPTD788939)
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