Ethyl 7-chlorobenzo[b]thiophene-2-carboxylate CAS 90407-15-1
| CAS No. | 90407-15-1 |
| Molecular Formula | C11H9ClO2S |
| Molecular Weight | 240.71 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Ethyl 7-chlorobenzo[b]thiophene-2-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.
CATO supplies Ethyl 7-chlorobenzo[b]thiophene-2-carboxylate (CAS 90407-15-1), a certified reference material (molecular formula C11H9ClO2S, MW 240.71 g/mol) for analytical method development and quality control.
The molecular framework of Ethyl 7-chlorobenzo[b]thiophene-2-carboxylate (C11H9ClO2S) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C11H9ClO2S |
| Molecular Weight | 240.71 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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.) | 1982 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Ethyl Standards
- Ethyl 6-Chlorobenzo[b]thiophene-2-carboxylate (CAS 105191-53-5)
- Ethyl 4-chlorobenzo[b]thiophene-2-carboxylate (CAS 1207537-67-4)
- Ethyl 5-chlorobenzo[b]thiophene-2-carboxylate (CAS 13771-67-0)
- 1-(4-Chlorobenzo[d]thiazol-2-yl)azetidin-3-ol (CAS 1421498-46-5)
- Ethyl 3-chlorobenzo[b]thiophene-2-carboxylate (CAS 21211-08-5)
- Methyl 2-(5-chlorobenzo[b]thiophen-3-yl)acetate (CAS 95834-67-6)
- 4-(7-Chlorobenzo[d][1,3]dioxol-5-yl)oxazolidin-2-one (CAS 1484011-24-6)
- Ethyl 4-chlorobenzo[d]thiazole-2-carboxylate (CAS 1188144-96-8)
Recommended Standards
- Antibacterial agent 117 (CAS 341944-06-7)
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- Methyl 5-chloro-3-methylbenzo[b]thiophene-2-carboxylate (CAS 75416-72-7)
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