2-Bromo-1-(5-bromo-2,3-dihydrobenzofuran-7-yl)ethan-1-one CAS 690632-70-3
| CAS No. | 690632-70-3 |
| Molecular Formula | C10H8Br2O2 |
| Molecular Weight | 319.98 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Bromo-1-(5-bromo-2,3-dihydrobenzofuran-7-yl)ethan-1-one (CAS 690632-70-3), molecular formula C10H8Br2O2 and molecular weight 319.98 g/mol, is a CATO reference standard with documented purity and traceability.
2-Bromo-1-(5-bromo-2,3-dihydrobenzofuran-7-yl)ethan-1-one (C10H8Br2O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, 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.
As a certified reference material (CRM), 2-Bromo-1-(5-bromo-2,3-dihydrobenzofuran-7-yl)ethan-1-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.
Physical & Chemical Properties
| Molecular Formula | C10H8Br2O2 |
| Molecular Weight | 319.98 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 2-Bromo-5-iodo-3-methoxypyridine (CAS 1131335-43-7)
- 5-Bromo-3-chloro-2-methoxybenzene-1-sulfonyl chloride (CAS 1152516-62-5)
- 4-Bromo-5-chloro-2-methoxybenzene-1-sulfonyl chloride (CAS 1208076-81-6)
- 2-Bromo-4-iodo-3-methoxypyridine (CAS 1261365-82-5)
- 5-bromo-2-(2,4-dichlorophenoxy)pyrimidine (CAS 1275391-61-1)
- 5-(5-Bromo-4,6-dichloropyrimidin-2-yl)cyclopenta-1,3-dienecarbaldehyde (CAS 1354783-18-8)
- 4-Bromo-5-(3,4-dichlorophenyl)furan-2-carbaldehyde (CAS 1403567-72-5)
- 4-Bromo-2-chloro-5-methoxybenzenesulfonyl chloride (CAS 1418316-29-6)
Recommended Standards
- 2,3,5,6-Tetrafluoro-4-iodobenzoic acid (CAS 873536-93-7)
- 4-(Allyloxy)-3,5-dibromobenzaldehyde (CAS 443292-04-4)
- 2-(3,4-Dibromobenzylidene)hydrazine-1-carboximidamide (CAS 849459-86-5)
- 5,6-Dibromo-1,3-dimethyl-1,3-dihydro-2H-benzo[d]imidazol-2-one (CAS 24786-53-6)
- (1R,5S)-1-(2-Naphthyl)-3-azabicyclo[3.1.0]hexane (CAS 924012-43-1)
- Bromodifluoromethyl diethylphosphonate diethyl (bromodifluoromethyl)phosphonate bromodifluoromethyl diethyl phosphonate diethyl bromodifluoromethanephosphonate diethyl(bromodifluoromethyl)phosphonate bromodifluoromethane diethyl phosphate 65094-22-6 (CAS 65094-22-6)
- 3-Hydroxy-N-methoxy-N-methylcyclobutane-1-carboxamide (CAS 1187595-64-7)
- N-(3-phenylprop-2-yn-1-yl)butan-1-amine hydrochloride (CAS 1048947-48-3)
- Ethyl 4-(prop-2-yn-1-yl)piperazine-1-carboxylate (CAS 141403-43-2)
- Methyl 2-([1,1'-biphenyl]-4-yl)-2-methylpropanoate (CAS 81770-34-5)
- N1-benzyl-N1-methylpentane-1,2-diamine (CAS 1153105-57-7)
- Dimethyl 2-methylisophthalate (CAS 28269-31-0)
- 6-Bromo-4-(difluoromethoxy)quinoline (CAS 1432754-13-6)
- Semaglutide impurity 81 (CAS CATO-C4X-222681)
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