5,6-Dibromoisobenzofuran-1,3-dione CAS 65237-17-4
| CAS No. | 65237-17-4 |
| Molecular Formula | C8H2Br2O3 |
| Molecular Weight | 305.91 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 305.91 g/mol gives 5,6-Dibromoisobenzofuran-1,3-dione distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 5,6-Dibromoisobenzofuran-1,3-dione (CAS 65237-17-4), a certified reference material (molecular formula C8H2Br2O3, MW 305.91 g/mol) for analytical method development and quality control.
5,6-Dibromoisobenzofuran-1,3-dione (C8H2Br2O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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), 5,6-Dibromoisobenzofuran-1,3-dione 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 | C8H2Br2O3 |
| Molecular Weight | 305.91 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Halogen Content | Br-containing |
Recommended Standards
- 1,3-Isobenzofurandione, 4,7-dibromo (CAS 25834-16-6)
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- 2-((tert-Butyldimethylsilyloxy)methyl)-6-chlorofuro[3,2-b]pyridine (CAS 1171920-42-5)
- N-(3,5-difluorobenzyl)-4H-1,2,4-triazol-4-amine (CAS 1400635-46-2)
- 3-(Pyrazin-2-yl)butan-2-ol (CAS 1340339-77-6)
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- 2,7-Dimethyl-1H-imidazo[4,5-b]pyridine (CAS 115951-60-5)
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