6-Bromo-2,3-dimethylquinoxaline-5,8-dione CAS 7697-86-1
| CAS No. | 7697-86-1 |
| Molecular Formula | C10H7BrN2O2 |
| Molecular Weight | 267.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 6-Bromo-2,3-dimethylquinoxaline-5,8-dione.
6-Bromo-2,3-dimethylquinoxaline-5,8-dione (CAS 7697-86-1) is a high-purity analytical reference standard with the molecular formula C10H7BrN2O2 and a molecular weight of 267.08 g/mol.
6-Bromo-2,3-dimethylquinoxaline-5,8-dione (C10H7BrN2O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C10H7BrN2O2 |
| Molecular Weight | 267.08 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, 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; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
- 6-Bromo-2-hydroxy-5-oxo-5,6,7,8-tetrahydroquinoline-3-carbonitrile (CAS 107955-83-9)
- 5-Bromo-4-phenyl-1H-pyrazole-3-carboxylic acid (CAS 110030-20-1)
- 2-(4-bromo-1H-pyrazol-1-yl)benzoic acid (CAS 1134764-21-8)
- 3-Bromo-5-hydroxy-2-methylnaphthalene-1,4-dione (CAS 113683-19-5)
- 3-Bromo-4-(1-imidazolyl)benzoic Acid (CAS 1141669-53-5)
- 5-Bromo-N-(1h-pyrazol-4-yl)nicotinamide (CAS 1153793-80-6)
- 4-Bromo-1-phenyl-1h-pyrazole-3-carboxylic acid (CAS 1156392-45-8)
- 2-(4-Bromo-1H-pyrazol-1-yl)nicotinamide (CAS 1183449-86-6)
Recommended Standards
- 5-Bromo-N-(pyridin-3-yl)furan-2-carboxamide (CAS 43151-32-2)
- 6-Bromo-2-hydroxy-1-naphthoic acid (CAS 65726-23-0)
- 5-Bromo-N-(pyridin-2-yl)furan-2-carboxamide (CAS 202118-14-7)
- 6-Bromo-2-imino-2H-chromene-3-carboxamide (CAS 79604-91-4)
- 2,4-Dichloro-5-((cyano(pyrrolidin-1-yl)methylene)amino)benzoic acid (CAS 923576-03-8)
- 2-(3-Ethoxyphenyl)-6-methylquinoline-4-carboxylic acid (CAS 438212-75-0)
- 2-((3,4-Dihydroisoquinolin-2(1H)-yl)methyl)-5-hydroxy-4H-pyran-4-one (CAS 1225156-64-8)
- 6-Bromoisochromane-1,3-dione (CAS 1070292-82-8)
- 2-(Bromomethyl)-4-nitrobenzofuran (CAS 1936370-15-8)
- 3-(4-Bromo-2-(trifluoromethyl)phenyl)thiazolidine (CAS 1779135-41-9)
- Melphalan EP Impurity B DiHCl (CAS CATO-C4X-198820)
- tert-Butyl 5-[(tert-butyldimethylsilyl)oxy]-2-nitro-1H-indole-1-carboxylate (CAS 1881289-36-6)
- Tolvaptan Impurity 83 (CAS 942619-79-6)
- [Ser39-OH] Tirzepatide (CAS CATO-C4X-324041)
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