Bumetanide Impurity N1 CAS 28469-01-4
| CAS No. | 28469-01-4 |
| Molecular Formula | C21H28N2O5S |
| Molecular Weight | 420.52 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Bumetanide Impurity N1 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.
Bumetanide Impurity N1 (CAS 28469-01-4) is a certified pharmaceutical impurity reference standard with the molecular formula C21H28N2O5S and a molecular weight of 420.52 g/mol.
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Bumetanide Impurity N1 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 420.52 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
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 | C21H28N2O5S |
| Molecular Weight | 420.52 g/mol |
| Purity | >95% |
| Storage | Store in a cool place (≤25°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.) | 1965 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Bumetanide Standards
- Bumetanide EP Impurity C (CAS 32643-00-8)
- Bumetanide EP Impurity D (CAS 153012-65-8)
- Bumetanide Impurity N3 (CAS 1236290-34-8)
- Bumetanide Impurity 131 (CAS CATO-C4X-1986131)
- Bumetanide Impurity 60 (CAS CATO-C4X-198660)
- Bumetanide Impurity 132 (CAS CATO-C4X-1986132)
- Bumetanide-d5 Butyl Ester (CAS 1216685-32-3)
- Bumetanide Impurity 134 (CAS CATO-C4X-1986134)
Recommended Standards
- 3-Methoxy-N-[(1-methyl-1H-pyrazol-4-yl)methyl]-N-[2-(piperidin-1-ylsulfonyl)ethyl]benzamide (CAS 1010865-42-5)
- Levocabastine EP Impurity I (CAS CATO-C4X-22899)
- (Z)-3-(4-(Styrylsulfonyl)piperazin-1-yl)-6-(o-tolyl)pyridazine (CAS 1021257-78-2)
- Levocabastine EP Impurity E (CAS CATO-C4X-22895)
- Empagliflozin Impurity 271 (CAS CATO-C4X-1065271)
- Ambroxol Impurity 23 (CAS CATO-C4X-108523)
- Ceftaroline Fosamil Impurity C54 (CAS 1240196-56-8)
- 149021-66-9 2-[5-[1,3-Dihydro-5-[[(2-iodoacetyl)amino]methyl]-1,3,3-trimethyl-2H-indol-2-ylidene]-1,3-pentadien-1-yl]-1,1-dimethyl-3-(4-sulfobutyl)-1H-Benz[e]indolium Inner Salt 4,5-Benzo-5 inverted exclamation marka-(iodoacetaminomethyl)-1 inverted exclamation marka,3,3,3 inverted exclamation marka,3 inverted exclamation marka-pentamethyl-1-(4-sulfobutyl)indodicarbocyanine NIR-664-iodoacetamide (CAS 149021-66-9)
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- 5-(Benzyloxy)-2-bromo-4-methylaniline (CAS 499770-88-6)
- Cinacalcet Impurity 56 (CAS 104201-66-3)
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- C-Peptide (human) (CAS 33017-11-7)
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