4-(8-Bromo-2,3-dihydrobenzo[b][1,4]dioxin-6-yl)but-3-en-2-one CAS 1344857-82-4
| CAS No. | 1344857-82-4 |
| Molecular Formula | C12H11BrO3 |
| Molecular Weight | 283.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-(8-Bromo-2,3-dihydrobenzo[b][1,4]dioxin-6-yl)but-3-en-2-one.
4-(8-Bromo-2,3-dihydrobenzo[b][1,4]dioxin-6-yl)but-3-en-2-one (CAS 1344857-82-4) is a high-purity analytical reference standard with the molecular formula C12H11BrO3 and a molecular weight of 283.12 g/mol.
Based on its molecular formula C12H11BrO3, 4-(8-Bromo-2,3-dihydrobenzo[b][1,4]dioxin-6-yl)but-3-en-2-one 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 283.12 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
CATO manufactures 4-(8-Bromo-2,3-dihydrobenzo[b][1,4]dioxin-6-yl)but-3-en-2-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H11BrO3 |
| Molecular Weight | 283.12 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, 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.) | 1991 |
| Halogen Content | Br-containing |
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