4-bromo-2,3-dihydro-1-benzofuran-3-one CAS 1020966-78-2
| CAS No. | 1020966-78-2 |
| Molecular Formula | C8H11BrO2 |
| Molecular Weight | 219.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4-bromo-2,3-dihydro-1-benzofuran-3-one 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.
CATO supplies 4-bromo-2,3-dihydro-1-benzofuran-3-one (CAS 1020966-78-2), a certified reference material (molecular formula C8H11BrO2, MW 219.08 g/mol) for analytical method development and quality control.
Based on its molecular formula C8H11BrO2, 4-bromo-2,3-dihydro-1-benzofuran-3-one contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 219.08 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C8H11BrO2 |
| Molecular Weight | 219.08 g/mol |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | Br-containing |
Related bromo Standards
- 4-Bromo-1-(3-methoxypropyl)-1h-pyrazole (CAS 1183903-41-4)
- 7-bromo-1,3-dihydropyrrolo[2,3-c]pyridin-2-one (CAS 1190318-26-3)
- 7-bromo-1,3-dihydropyrrolo[3,2-b]pyridin-2-one (CAS 1190318-71-8)
- 6-bromo-1H,2H,3H-pyrrolo[3,2-b]pyridin-2-one (CAS 1190319-62-0)
- 6-bromo-1H,2H,3H-pyrrolo[2,3-b]pyridin-2-one (CAS 1190322-81-6)
- 8-Bromo-1,4-dioxaspiro[4.5]dec-7-ene (CAS 1190757-88-0)
- 2-Bromo-5,5-dimethyl-cyclohexane-1,3-dione (CAS 1195-91-1)
- 5-bromo-1H,2H,3H-pyrrolo[2,3-c]pyridin-2-one (CAS 1217002-90-8)
Recommended Standards
- 1-(3,5-Dichlorophenyl)-3-Methylurea (CAS 38655-13-9)
- methyl 3-(bromomethyl)bicyclo[1.1.1]pentane-1-carboxylate (CAS 1113001-87-8)
- 1-(3,4-Dichlorophenyl)-3-Methyl Urea (CAS 3567-62-2)
- N-(2-Amino-4,5-dichlorophenyl)acetamide (CAS 501076-48-8)
- 3-(3-Chlorophenyl)picolinaldehyde (CAS 61704-35-6)
- (4-Bromo-5-cyclopropoxypyridin-3-yl)methanamine (CAS 1243469-67-1)
- 3-Methyl-1,2,4-thiadiazole-5-carboxamide (CAS 1448078-67-8)
- 3-(4-Methylpyridin-3-yl)propan-1-amine (CAS 1060805-02-8)
- 2-bromo-5-methoxy-4-(2-phenylethoxy)benZaldehyde (CAS 692262-21-8)
- 1,3-Isobenzofurandione, polymer with 2,5-furandione and oxybis[propanol] (CAS 51922-42-0)
- 2-Amino-N-(2-methoxypyridin-3-yl)-2-methylpentanamide (CAS 1179722-76-9)
- 8,8'-Dithiobis[3-quinolinecarboxylic acid] (CAS 1414882-25-9)
- 6-Methyl-2-piperidin-2-yl-pyrimidin-4-ol dihydrochloride (CAS 1361114-13-7)
- Des-Ala28-Tirzepatide (CAS CATO-CPTD788945)
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