4-Fluoro-2,3-dihydrobenzo[b]thiophene-2-carboxylic acid CAS 923163-24-0
| CAS No. | 923163-24-0 |
| Molecular Formula | C9H7FO2S |
| Molecular Weight | 198.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-Fluoro-2,3-dihydrobenzo[b]thiophene-2-carboxylic acid.
4-Fluoro-2,3-dihydrobenzo[b]thiophene-2-carboxylic acid (CAS 923163-24-0) is a high-purity analytical reference standard with the molecular formula C9H7FO2S and a molecular weight of 198.21 g/mol.
Based on its molecular formula C9H7FO2S, 4-Fluoro-2,3-dihydrobenzo[b]thiophene-2-carboxylic acid contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 198.21 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
CATO manufactures 4-Fluoro-2,3-dihydrobenzo[b]thiophene-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 | C9H7FO2S |
| Molecular Weight | 198.21 g/mol |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
Related Fluoro Standards
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