7-Bromo-2-fluoroquinoxaline CAS 2251-59-4
| CAS No. | 2251-59-4 |
| Molecular Formula | C8H4BrFN2 |
| Molecular Weight | 227.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 227.03 g/mol gives 7-Bromo-2-fluoroquinoxaline distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 7-Bromo-2-fluoroquinoxaline (CAS 2251-59-4), a certified reference material (molecular formula C8H4BrFN2, MW 227.03 g/mol) for analytical method development and quality control.
The molecular framework of 7-Bromo-2-fluoroquinoxaline (C8H4BrFN2) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine/bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 7-Bromo-2-fluoroquinoxaline 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 | C8H4BrFN2 |
| Molecular Weight | 227.03 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F/Br-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
- 6-Bromo-2-fluoroquinoxaline (CAS 112080-07-6)
- 6-Bromo-7-fluoroquinoxaline (CAS 1210047-55-4)
- 7-Bromo-5-fluoroquinoxaline (CAS 1210048-05-7)
- 8-Bromo-2-fluoro-1,5-naphthyridine (CAS 1432322-85-4)
- 8-Bromo-3-fluoro-1,5-naphthyridine (CAS 1437790-07-2)
- 1-(4-bromo-2-fluorophenyl)prop-2-yn-1-one (CAS 1601693-72-4)
- 5-Bromo-7-fluoroquinoxaline (CAS 1628908-19-9)
- 5-Bromo-6-fluoroquinoxaline (CAS 1893896-09-7)
Recommended Standards
- 6-Bromo-5-fluoroquinoxaline (CAS 2411639-48-8)
- 4-Chloro-2-(chloromethyl)-1-(difluoromethoxy)benzene (CAS 1049874-11-4)
- (2-Cyano-4-(4-methyl-1H-pyrazol-1-yl)phenyl)boronic acid (CAS 2225180-96-9)
- 2-Hydroxy-5-iodopyridine (CAS 13472-79-2)
- (3,5,6-Trimethylpyrazin-2-yl)methanol (CAS 75907-74-3)
- 2-(Diethoxymethyl)thiophene (CAS 13959-97-2)
- 3-Bromo-2-(difluoromethyl)quinolin-4(1H)-one (CAS 1707571-13-8)
- 1,4,5,8-Tetraamino-2,7-bis(3-fluorophenoxy)anthracene-9,10-dione (CAS 88600-57-1)
- Ramosetron Impurity 25 (CAS CATO-C4X-118225)
- Spiro[3.5]non-5-en-1-one (CAS 41597-04-0)
- 2-Cyclopropyltetrahydrofuran-3-amine (CAS 1423033-52-6)
- Dofetilide Impurity 1 (CAS CATO-C4X-31211)
- trans-4-Amino-N-methylcyclohexanecarboxamide (CAS 412290-82-5)
- D-Pro36-Tirzepatide (CAS CATO-CPTD788903)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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