2,4-Dibromobenzene-1,3,5-triol CAS 84743-75-9
| CAS No. | 84743-75-9 |
| Molecular Formula | C6H4Br2O3 |
| Molecular Weight | 283.90 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,4-Dibromobenzene-1,3,5-triol (CAS 84743-75-9) is a high-purity analytical reference standard with the molecular formula C6H4Br2O3 and a molecular weight of 283.90 g/mol.
2,4-Dibromobenzene-1,3,5-triol (C6H4Br2O3) 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. 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).
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 | C6H4Br2O3 |
| Molecular Weight | 283.90 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1981 |
| Halogen Content | Br-containing |
Related Dibromobenzene Standards
- 2563-26-0 4,5-Dibromobenzene-1,2-diol 8501AD C6H4Br2O2 (CAS 2563-26-0)
- 3,5-Dibromobenzene-1,2-diol (CAS 111167-61-4)
- 3,6-Dibromobenzene-1,2-diol (CAS 123433-20-5)
- 2,3-Dibromobenzene-1,4-diol (CAS 6363-31-1)
- 2,6-Dibromobenzene-1,4-diol (CAS 3333-25-3)
- 2,5-Dibromobenzene-1,4-diamine (CAS 25462-61-7)
- 4,5-Dibromobenzene-1,2-diamine (CAS 49764-63-8)
- 4,6-Dibromobenzene-1,3-diamine (CAS 36210-57-8)
Recommended Standards
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- 4-Bromo-3-iodopyridine (CAS 89167-20-4)
- Methyl 4,5-Dibromo-2-furoate (CAS 54113-41-6)
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