1-(Benzenesulfonyl)-3-bromo-1h-indazole CAS 1788041-55-3
| CAS No. | 1788041-55-3 |
| Molecular Formula | C13H9BrN2O2S |
| Molecular Weight | 337.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1-(Benzenesulfonyl)-3-bromo-1h-indazole is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
1-(Benzenesulfonyl)-3-bromo-1h-indazole (CAS 1788041-55-3), molecular formula C13H9BrN2O2S and molecular weight 337.19 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 1-(Benzenesulfonyl)-3-bromo-1h-indazole (C13H9BrN2O2S) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 1-(Benzenesulfonyl)-3-bromo-1h-indazole meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C13H9BrN2O2S |
| Molecular Weight | 337.19 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Benzenesulfonyl Standards
- 1-(Benzenesulfonyl)-5-bromo-1H-pyrrolo[2,3-b]pyridine (CAS 1001070-33-2)
- 1-(benzenesulfonyl)-4-bromo-1H-indazole (CAS 1001415-32-2)
- 5-(Benzenesulfonyl)-7-bromo-5H-pyrrolo[2,3-b]pyrazine (CAS 1262309-85-2)
- (2Z)-2-(Benzenesulfonyl)-3-(5-methoxy-1H-indol-3-yl)prop-2-enenitrile (CAS 1164474-01-4)
- [4-(Benzenesulfonyl)butanesulfonyl]benzene (CAS 53893-42-8)
- 2-[(Benzenesulfonyl)methyl]-3-chloro-5-(trifluoromethyl)pyridine (CAS 338420-49-8)
- (2E)-2-(Benzenesulfonyl)-3-[(quinolin-8-yl)amino]prop-2-enenitrile (CAS 1024776-64-4)
- (2Z)-2-(Benzenesulfonyl)-3-(3-phenyl-1H-pyrazol-4-yl)prop-2-enenitrile (CAS 477710-87-5)
Recommended Standards
- (4-(((Tert-butoxycarbonyl)(cyclopentyl)amino)methyl)-2-fluorophenyl)boronic acid (CAS 1704096-68-3)
- 7-Bromo-1-(phenylsulfonyl)-1H-pyrrolo[3,2-c]pyridine (CAS 1951444-63-5)
- (4-(((Tert-butoxycarbonyl)(cyclopentyl)amino)methyl)-3-fluorophenyl)boronic acid (CAS 1704096-23-0)
- 1-((4-Bromophenyl)sulfonyl)-1H-pyrrolo[2,3-b]pyridine (CAS 477872-36-9)
- (S)-1-(2-ethylphenyl)propan-1-amine (CAS 1213408-45-7)
- 4-Bromochrysene (CAS 76670-41-2)
- Tert-butyl (S)-(1-aminopropan-2-yl)(methyl)carbamate (CAS 1268520-78-0)
- 3-Amino-6-methylpyrazine-2-carboxamide (CAS 820250-28-0)
- Lansoprazole impurity 63 (CAS 763899-08-7)
- 2-((3,5-Dimethylisoxazol-4-yl)methoxy)-3-methylbenzoic acid (CAS 926194-68-5)
- N-(2,4-Dimethyl-phenyl)-2-(4-ethyl-5-mercapto-4H-[1,2,4]triazol-3-yl)-acetamide (CAS 924969-62-0)
- 166602-13-7 3,5-bis(trifluoromethyl)piperidine DTXSID10434534 (CAS 166602-13-7)
- n-((1,2,3-Thiadiazol-4-yl)methyl)-3-methylbutan-1-amine (CAS 1156893-95-6)
- Semaglutide impurity 49 (CAS CATO-C4X-222649)
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