7-Chloro-1-benzofuran-2-carboxylic acid CAS 63558-84-9
| CAS No. | 63558-84-9 |
| Molecular Formula | C9H5ClO3 |
| Molecular Weight | 196.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
7-Chloro-1-benzofuran-2-carboxylic acid (CAS 63558-84-9) is a high-purity analytical reference standard with the molecular formula C9H5ClO3 and a molecular weight of 196.59 g/mol.
7-Chloro-1-benzofuran-2-carboxylic acid (C9H5ClO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. It is notably hygroscopic, 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 7-Chloro-1-benzofuran-2-carboxylic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H5ClO3 |
| Molecular Weight | 196.59 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 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.) | 1975 |
| Halogen Content | Cl-containing |
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Recommended Standards
- 6-Chloroquinoxaline-2,3-diol (CAS 6639-79-8)
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- 6-Chloropyrrolo[1,2-a]pyrazine-3-carboxylic acid (CAS 2306264-56-0)
- 7-chloro-3-(hydroxyimino)indolin-2-one (CAS 74396-74-0)
- 3-Methyl-2-nitro-1H-indole (CAS 19869-26-2)
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- 9-Methyl-2,3-dihydro-1H-cyclopenta[b]quinolin-1-one (CAS 1515858-94-2)
- 1-(4-nitroÂphenylÂ)-3-oxo-1-butanÂol (CAS 57548-40-0)
- 4-Methyl-2-(1H-pyrrol-1-yl)pyridin-3-amine (CAS 120494-06-6)
- 3-Chloro-4-((4-chloronaphthalen-1-yl)oxy)aniline (CAS 76590-23-3)
- 1-Ethyl-N-(3-(phenylcarbamoyl)thiophen-2-yl)-1H-pyrazole-3-carboxamide (CAS 1005863-67-1)
- 1-(5-(3-Aminopyrrolidine-1-carbonyl)thiophen-2-yl)ethan-1-one (CAS 2098101-12-1)
- 6-Chloro-7-methyl-1h-indole-2,3-dione (CAS 6374-90-9)
- Peptide Impurity 05 (CAS 2322924-83-2)
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