5-Ethyl-4,5,6,7-tetrahydro-1-benzothiophene-2-carbonyl chloride CAS 869947-17-1
| CAS No. | 869947-17-1 |
| Molecular Formula | C11H13ClOS |
| Molecular Weight | 228.74 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-Ethyl-4,5,6,7-tetrahydro-1-benzothiophene-2-carbonyl chloride is closely related to sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
5-Ethyl-4,5,6,7-tetrahydro-1-benzothiophene-2-carbonyl chloride (CAS 869947-17-1), molecular formula C11H13ClOS and molecular weight 228.74 g/mol, is a CATO reference standard with documented purity and traceability.
5-Ethyl-4,5,6,7-tetrahydro-1-benzothiophene-2-carbonyl chloride (C11H13ClOS) contains sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
As a certified reference material (CRM), 5-Ethyl-4,5,6,7-tetrahydro-1-benzothiophene-2-carbonyl chloride 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 | C11H13ClOS |
| Molecular Weight | 228.74 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
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