(R)-5-Chloro-2-methyl-2,3-dihydrobenzofuran-2-carboxylic acid CAS 2143005-58-5
| CAS No. | 2143005-58-5 |
| Molecular Formula | C10H9ClO3 |
| Molecular Weight | 212.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of (R)-5-Chloro-2-methyl-2,3-dihydrobenzofuran-2-carboxylic acid 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 (R)-5-Chloro-2-methyl-2,3-dihydrobenzofuran-2-carboxylic acid (CAS 2143005-58-5), a certified reference material (molecular formula C10H9ClO3, MW 212.63 g/mol) for analytical method development and quality control.
The molecular framework of (R)-5-Chloro-2-methyl-2,3-dihydrobenzofuran-2-carboxylic acid (C10H9ClO3) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
CATO manufactures (R)-5-Chloro-2-methyl-2,3-dihydrobenzofuran-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 | C10H9ClO3 |
| Molecular Weight | 212.63 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | Cl-containing |
Related R Standards
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Recommended Standards
- (R)-2-Chloro-2-oxo-1-phenylethyl acetate (CAS 49845-69-4)
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- (S)-5-Chloro-2-methyl-2,3-dihydrobenzofuran-2-carboxylic acid (CAS 2143005-56-3)
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- 1,3-Dimethyl-1H-pyrazole-4-carboxamide (CAS 124845-21-2)
- D-Ser39-Tirzepatide (CAS CATO-CPTD788694)
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