2,4,6-Tribromo-3,5-dimethoxyphenol CAS 121869-55-4
| CAS No. | 121869-55-4 |
| Molecular Formula | C8H7Br3O3 |
| Molecular Weight | 390.85 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 390.85 g/mol gives 2,4,6-Tribromo-3,5-dimethoxyphenol distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2,4,6-Tribromo-3,5-dimethoxyphenol (CAS 121869-55-4) is a high-purity analytical reference standard with the molecular formula C8H7Br3O3 and a molecular weight of 390.85 g/mol.
2,4,6-Tribromo-3,5-dimethoxyphenol (C8H7Br3O3) 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C8H7Br3O3 |
| Molecular Weight | 390.85 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 |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| 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.) | 1991 |
| Halogen Content | Br-containing |
Related Tribromo Standards
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Recommended Standards
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