5,7-Dibromoquinoxaline CAS 1644115-99-0
| CAS No. | 1644115-99-0 |
| Molecular Formula | C8H4Br2N2 |
| Molecular Weight | 287.94 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5,7-Dibromoquinoxaline (C8H4Br2N2) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, bromine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
5,7-Dibromoquinoxaline (CAS 1644115-99-0), molecular formula C8H4Br2N2 and molecular weight 287.94 g/mol, is a CATO reference standard with documented purity and traceability.
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), 5,7-Dibromoquinoxaline 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 | C8H4Br2N2 |
| Molecular Weight | 287.94 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.) | 1993 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Dibromoquinoxaline Standards
Recommended Standards
- 2,6-Dibromoquinazoline (CAS 161425-75-8)
- 2,5-Dibromo-3-nitro-pyridine (CAS 15862-37-0)
- 4,6-Dibromoquinazoline (CAS 1781044-15-2)
- 1,4-Dibromo-2,6-naphthyridine (CAS 1353971-28-4)
- 2-(Difluoromethyl)-3-methoxy-5-methylpyridine-4-methanol (CAS 1805466-07-2)
- 3-Benzyl-7-phenylhexahydro-1H-pyridazino[1,2-a][1,2,5]triazepine-1,5(2H)-dione (CAS 67744-81-4)
- Donepezil Related Compound A HCl (CAS 120011-69-0)
- Finasteride Impurity 53 (CAS CATO-C4X-164553)
- Methyl 3-bromo-2-cyano-5-methoxybenzoate (CAS 1806852-51-6)
- N-(Pyridin-4-ylmethyl)benzo[c][1,2,5]thiadiazole-5-carboxamide (CAS 1203008-21-2)
- (6-Methylbenzo[d]oxazol-2-yl)methanamine hydrochloride (CAS 1158477-80-5)
- N-(3-cyanophenyl)-2-(1H-imidazol-1-yl)acetamide (CAS 1019622-55-9)
- Dimethyl 4-bromophthalate (CAS 87639-57-4)
- DAPK Substrate Peptide (CAS 386769-53-5)
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