1-(Benzofuran-3-yl)-2-bromoethan-1-one CAS 187657-92-7
| CAS No. | 187657-92-7 |
| Molecular Formula | C10H7BrO2 |
| Molecular Weight | 239.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1-(Benzofuran-3-yl)-2-bromoethan-1-one is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
1-(Benzofuran-3-yl)-2-bromoethan-1-one (CAS 187657-92-7) is a high-purity analytical reference standard with the molecular formula C10H7BrO2 and a molecular weight of 239.07 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system, 1-(Benzofuran-3-yl)-2-bromoethan-1-one is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 239.07 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 1-(Benzofuran-3-yl)-2-bromoethan-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 | C10H7BrO2 |
| Molecular Weight | 239.07 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 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; 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.) | 2010 |
| Halogen Content | Br-containing |
Related Benzofuran Standards
- 1-(Benzofuran-5-yl)-2-bromoethan-1-one (CAS 844891-02-7)
- 2-Benzofuran-2-yl-isonicotinic acid (CAS 1255638-44-8)
- 5-(Benzofuran-2-yl)nicotinic acid (CAS 1263377-61-2)
- 3-(Benzofuran-2-yl)benzoic acid (CAS 835595-07-8)
- 3-phenyl-1-benzofuran-2-carboxylic acid (CAS 60312-24-5)
- 5-(Benzofuran-2-yl)-benzo[d][1,3]dioxole (CAS 65246-43-7)
- Benzofuran-5-yl-difluoroacetic acid ethyl ester (CAS 943541-56-8)
- [4-(1-Benzofuran-2-yl)-1,3-thiazol-2-yl]acetonitrile (CAS 851399-94-5)
Recommended Standards
- (8-Bromo-1,6-naphthyridin-2-yl)methanol (CAS 1860886-85-6)
- 1,4-Dichloro-2-fluoro-3-(2-methoxyethoxy)benzene (CAS 1881291-82-2)
- 7-Bromo-3-methyl-4H-pyrido[1,2-a]pyrimidin-4-one (CAS 1848244-23-4)
- N-(4-Bromo-2-cyanophenyl)acetamide (CAS 189634-99-9)
- Ethyl 1-(methylsulfonyl)cyclopropane-1-carboxylate (CAS 1257236-76-2)
- 5-[(E)-[(2-Hydroxyphenyl)methylidene]amino]-2-methylbenzonitrile (CAS 298217-77-3)
- 3-((3-Bromobenzyl)oxy)azetidine (CAS 1121634-25-0)
- Tert-butyl 2-(pyridin-2-yl)acetate (CAS 150059-62-4)
- 3-{5-Chloro-2-[(4-chlorophenyl)methoxy]-phenyl}prop-2-enoic acid (CAS 938233-04-6)
- N4-Cyclopropylpyrimidine-2,4-diamine (CAS 1150618-11-3)
- 8-Chlorocinnolin-4-ol (CAS 876-75-5)
- 3-cyclopropyl-4-methylpyridin-2-amine hydrochloride (CAS 1955554-21-8)
- 6-(3-(Difluoromethoxy)phenyl)-3-methylisoxazolo[5,4-b]pyridine-4-carboxylic acid (CAS 1174858-05-9)
- Tirzepatide Impurity 49 (CAS CATO-C4X-324049)
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