2-Bromo-1,3-dimethoxybenzene CAS 16932-45-9
| CAS No. | 16932-45-9 |
| Molecular Formula | C8H9BrO2 |
| Molecular Weight | 217.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Bromo-1,3-dimethoxybenzene (CAS 16932-45-9) is a high-purity analytical reference standard with the molecular formula C8H9BrO2 and a molecular weight of 217.06 g/mol.
Based on its molecular formula C8H9BrO2, 2-Bromo-1,3-dimethoxybenzene contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 217.06 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C8H9BrO2 |
| Molecular Weight | 217.06 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; 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.) | 1961 |
| Halogen Content | Br-containing |
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- 3-Bromo-5-nitropicolinic acid (CAS 1211583-91-3)
- 4-Bromo-N-isopropylbenzamide (CAS 336182-29-7)
- 5-(4-Fluorophenyl)-3-methyl-1,2,4-thiadiazole (CAS 74466-93-6)
- Ethyl 3,5-diaminopyrazine-2-carboxylate (CAS 1785169-51-8)
- 2-(4-Chlorophenyl)-3-[(4-methylphenyl)sulfanyl]quinoline (CAS 477867-86-0)
- Insulin Degludec Impurity 6 (CAS CATO-C4X-21576)
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