4-Bromobenzo[b]thiophene-3-carboxylic acid CAS 1824389-88-9
| CAS No. | 1824389-88-9 |
| Molecular Formula | C9H5BrO2S |
| Molecular Weight | 257.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Bromobenzo[b]thiophene-3-carboxylic acid (C9H5BrO2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. 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.
4-Bromobenzo[b]thiophene-3-carboxylic acid (CAS 1824389-88-9), molecular formula C9H5BrO2S and molecular weight 257.10 g/mol, is a CATO reference standard with documented purity and traceability.
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-Bromobenzo[b]thiophene-3-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 | C9H5BrO2S |
| Molecular Weight | 257.10 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.) | 1995 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
Related Bromobenzo Standards
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- Tetrahydrofuran-3-sulfonyl Chloride (CAS 1207346-29-9)
- 1-(2-Butyl-1H-pyrrol-1-yl)ethanone (CAS 113676-12-3)
- 1-Bromo-4-methoxy-2,3-dinitrobenzene (CAS 860465-95-8)
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