Ethyl benzo[b]thiophene-7-carboxylate CAS 959632-57-6
| CAS No. | 959632-57-6 |
| Molecular Formula | C11H10O2S |
| Molecular Weight | 206.26 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.
Ethyl benzo[b]thiophene-7-carboxylate (CAS 959632-57-6), molecular formula C11H10O2S and molecular weight 206.26 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Ethyl benzo[b]thiophene-7-carboxylate (C11H10O2S) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a certified reference material (CRM), Ethyl benzo[b]thiophene-7-carboxylate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C11H10O2S |
| Molecular Weight | 206.26 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 4-Fluoro-2-(piperidin-1-ylmethyl)benzenethiol (CAS 1443305-74-5)
- 1-(2,4-Dimethyl-5-nitrophenyl)ethan-1-one (CAS 13621-23-3)
- (S)-N-(3-(1-Hydroxyethyl)phenyl)acetamide (CAS 1344925-75-2)
- Methyl 2-(2-(4-(tert-butyl)phenoxy)-2,2-difluoroacetamido)benzoate (CAS 303151-27-1)
- 4-(4-Bromo-2-chloro-5-methoxyphenyl)-6-methyl-2-(methylsulfonyl)pyrimidine (CAS 1258652-61-7)
- 4-Bromophenyl 2-(4-methoxyphenyl)quinoline-4-carboxylate (CAS 332381-29-0)
- Olodaterol Impurity 9 (CAS CATO-C4X-19439)
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