3-Chloro-6-fluoro-benzo[b]thiophene-2-carboxylic acid 3-chloro-6-fluorobenzo[b]thiophene-2-carboxylic acid 3-chloro-6-fluorobenzo [b]thiophene-2-carboxylic acid 3-chloro-6-fluoro-1-benzothiophene-2-carboxylic acid 34576-92-6 CAS 34576-92-6
| CAS No. | 34576-92-6 |
| Molecular Formula | C9H4ClFO2S |
| Molecular Weight | 230.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
3-Chloro-6-fluoro-benzo[b]thiophene-2-carboxylic acid 3-chloro-6-fluorobenzo[b]thiophene-2-carboxylic acid 3-chloro-6-fluorobenzo [b]thiophene-2-carboxylic acid 3-chloro-6-fluoro-1-benzothiophene-2-carboxylic acid 34576-92-6 (CAS 34576-92-6), molecular formula C9H4ClFO2S and molecular weight 230.64 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 3-Chloro-6-fluoro-benzo[b]thiophene-2-carboxylic acid 3-chloro-6-fluorobenzo[b]thiophene-2-carboxylic acid 3-chloro-6-fluorobenzo [b]thiophene-2-carboxylic acid 3-chloro-6-fluoro-1-benzothiophene-2-carboxylic acid 34576-92-6 (C9H4ClFO2S) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C9H4ClFO2S |
| Molecular Weight | 230.64 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Halogen Content | F/Cl-containing |
| Sulfur Atoms | 1 |
Related Chloro Standards
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- 2-(Piperidin-1-yl)-2-(pyridin-4-yl)acetonitrile (CAS 104742-21-4)
- Stemoninine (CAS 69772-72-1)
- 5-Fluoro-2-(methylthio)-6-oxo-1,6-dihydropyrimidine-4-carboxylic acid (CAS 654-92-2)
- Proparacaine Impurity 29 (CAS CATO-C4X-202729)
- 2-Isopropylpent-4-enoic acid (CAS 1575-71-9)
- 4-Chloro-6-((4-methoxyphenyl)thio)-2-(methylthio)pyrimidine (CAS 478258-40-1)
- Liraglutide Sodium Salt (CAS 204656-20-2（free base）)
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