4-bromo-5-fluoro-benzothiophene-2-carboxylic acid CAS 826995-59-9
| CAS No. | 826995-59-9 |
| Molecular Formula | C9H12BrFO2S |
| Molecular Weight | 283.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-bromo-5-fluoro-benzothiophene-2-carboxylic acid (CAS 826995-59-9), molecular formula C9H12BrFO2S and molecular weight 283.16 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H12BrFO2S, 4-bromo-5-fluoro-benzothiophene-2-carboxylic acid contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 283.16 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 4-bromo-5-fluoro-benzothiophene-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 | C9H12BrFO2S |
| Molecular Weight | 283.16 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1986 |
| Halogen Content | F/Br-containing |
| Sulfur Atoms | 1 |
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Recommended Standards
- 4-Bromo-2-(4-methylpiperazino)benzaldehyde (CAS 628326-12-5)
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- H-Arg(NO2)-OBzl p-tosylate salt (CAS 7672-27-7)
- 2H-Furo[2,3-e]indazole (CAS 143400-42-4)
- 2-(4-Bromo-2,5-difluorophenoxy)acetonitrile (CAS 1379301-44-6)
- Recoflavone (CAS 203191-10-0)
- 3-Nonanone (CAS 925-78-0)
- Ethyl 5-azaspiro[2.3]hexane-1-carboxylate (CAS 1423070-41-0)
- 1-Butylcyclohexan-1-ol (CAS 5445-30-7)
- Liraglutide Impurity 22 (CAS 536721-25-2)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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