7-Bromo-6-fluoro-3,4-dihydroquinoxalin-2(1H)-one CAS 170098-97-2
| CAS No. | 170098-97-2 |
| Molecular Formula | C8H6BrFN2O |
| Molecular Weight | 245.05 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 7-Bromo-6-fluoro-3,4-dihydroquinoxalin-2(1H)-one (C8H6BrFN2O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 245.05 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
7-Bromo-6-fluoro-3,4-dihydroquinoxalin-2(1H)-one (CAS 170098-97-2) is a high-purity analytical reference standard with the molecular formula C8H6BrFN2O and a molecular weight of 245.05 g/mol.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 7-Bromo-6-fluoro-3,4-dihydroquinoxalin-2(1H)-one 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 | C8H6BrFN2O |
| Molecular Weight | 245.05 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2005 |
| Halogen Content | F/Br-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
- 8-Bromo-5-fluorochroman-4-one (CAS 1092348-60-1)
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- 3-Bromo-2-fluorocinnamic acid (CAS 1214791-57-7)
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Recommended Standards
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- 3-Bromo-4-fluorocinnamic acid (CAS 160434-49-1)
- (E)-3-(3-Bromo-2-fluorophenyl)acrylic acid (CAS 1852540-30-7)
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