7-Chloro-3-methylbenzofuran-2-carboxylic Acid CAS 32565-18-7
| CAS No. | 32565-18-7 |
| Molecular Formula | C10H7ClO3 |
| Molecular Weight | 210.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
7-Chloro-3-methylbenzofuran-2-carboxylic Acid (CAS 32565-18-7), molecular formula C10H7ClO3 and molecular weight 210.61 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, 7-Chloro-3-methylbenzofuran-2-carboxylic Acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 210.61 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
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), 7-Chloro-3-methylbenzofuran-2-carboxylic Acid 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 | C10H7ClO3 |
| Molecular Weight | 210.61 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 methanol, ethanol, 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.) | 1966 |
| Halogen Content | Cl-containing |
Related Chloro Standards
- 4-Chloro-7-methoxy-2H-chromen-2-one (CAS 103676-94-4)
- 7-Chloro-3-oxo-2,3-dihydro-1H-indene-4-carboxylic acid (CAS 1092347-16-4)
- 5-Chloro-3-methylbenzofuran-2-carboxylic Acid (CAS 1134-00-5)
- 4-Chloro-7-hydroxy-2H-chromene-3-carbaldehyde (CAS 1228581-06-3)
- 5-Chloro-7-methylbenzofuran-2-carboxylic acid (CAS 1248995-32-5)
- 5-Chloro-2H-chromene-3-carboxylic acid (CAS 1269695-62-6)
- 4-chloro-7-methyl-1-benzofuran-3-carboxylic acid (CAS 1483815-00-4)
- 5-Chloro-7-methylbenzofuran-3-carboxylic acid (CAS 1490298-33-3)
Recommended Standards
- 7-Chloro-2H-chromene-3-carboxylic acid (CAS 482374-64-1)
- 7-methoxy-1-benzofuran-2-carbonyl chloride (CAS 242133-59-1)
- 6-Chloro-4-hydroxy-7-methyl-2H-chromen-2-one (CAS 64729-38-0)
- Methyl 5-chlorobenzofuran-2-carboxylate (CAS 4852-31-7)
- 3-[Diethoxy(methyl)silyl]propyl methacrylate (CAS 65100-04-1)
- 7-Methoxyindolin-2-one (CAS 7699-20-9)
- 8-Nitroquinolin-4(1H)-one (CAS 23833-95-6)
- 2-Bromofuro[3,2-c]pyridin-4(5H)-one (CAS 1368152-84-4)
- 2-(1-(4-(Trifluoromethyl)phenyl)cyclopropyl)acetic acid (CAS 2228925-55-9)
- (2-Ethyl-4-methoxyphenyl)boronic acid (CAS 342899-07-4)
- N-Isobutyl-N-(4-methoxybenzyl)pyrrolidin-3-amine (CAS 820984-27-8)
- CAS 2043952-58-3 (CAS 2043952-58-3)
- 9-([1,1'-Biphenyl]-4-yl)-3-(4-chlorophenyl)-9H-carbazole (CAS 1219821-48-3)
- Peptide 440 (CAS CATO-CPTD788440)
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