1-benzofuran-3-carbonyl chloride CAS 111964-21-7
| CAS No. | 111964-21-7 |
| Molecular Formula | C9H5ClO2 |
| Molecular Weight | 180.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1-benzofuran-3-carbonyl chloride is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 1-benzofuran-3-carbonyl chloride (CAS 111964-21-7), a certified reference material (molecular formula C9H5ClO2, MW 180.59 g/mol) for analytical method development and quality control.
1-benzofuran-3-carbonyl chloride (C9H5ClO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
As a certified reference material (CRM), 1-benzofuran-3-carbonyl chloride 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 | C9H5ClO2 |
| Molecular Weight | 180.59 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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.) | 1988 |
| Halogen Content | Cl-containing |
Related benzofuran Standards
- Benzofuran-6-carbonyl chloride (CAS 1156547-55-5)
- Benzofuran-2-carbonyl chloride (CAS 41717-28-6)
- Benzofuran-5-carbonyl chloride (CAS 56540-70-6)
- 1-(Benzofuran-2-yl)-2-fluoroethan-1-amine (CAS 929972-28-1)
- 2-Ethyl-1-benzofuran-3-carbaldehyde (CAS 10035-41-3)
- 1-Benzofuran-3-carbothioamide (CAS 1510322-67-4)
- 1-benzofuran-2-carbothioamide (CAS 190430-18-3)
- Benzofuran-5-carbothioamide (CAS 499770-74-0)
Recommended Standards
- 3-(5-Chloropyridin-2-yl)-3-oxopropanenitrile (CAS 1107053-87-1)
- 2-Chloro-5-ethynylbenzoic acid (CAS 1143024-61-6)
- 5-Chloropyrazolo[1,5-a]pyridine-3-carbaldehyde (CAS 1101120-49-3)
- 4-Chloro-6-(1H-pyrazol-1-yl)pyrimidine (CAS 114833-95-3)
- 5-(3-Bromophenyl)cyclohexane-1,3-dione (CAS 144128-71-2)
- Crustacean Erythrophore Concentrating Hormone (CAS 37933-92-9)
- 4-Cadinen-7-ol (CAS 217650-27-6)
- Tert-butyl 2-cyano-2-[5-(trifluoromethyl)pyridin-2-yl]acetate (CAS 941133-76-2)
- 4′-Nitroacetanilide-2′,3′,5′,6′-d4 (CAS 68239-25-8)
- (R)-1-(2-Pyridyl)ethylamine (CAS 45695-03-2)
- 3-Amino-3-(4-bromophenyl)-2-methylpropanoic acid (CAS 1267336-14-0)
- 3-(1-(1H-Benzo[d][1,2,3]triazol-1-yl)butyl)thiazolidine-2-thione (CAS 849414-07-9)
- Bromopyrogallol Red (CAS 16574-43-9)
- Semaglutide impurity 01 (CAS 1998701-31-7)
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