[2-(3,5-dichlorophenyl)ethynyl]trimethylsilane CAS 351865-83-3
| CAS No. | 351865-83-3 |
| Molecular Formula | C11H12Cl2Si |
| Molecular Weight | 243.20 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.
[2-(3,5-dichlorophenyl)ethynyl]trimethylsilane (CAS 351865-83-3), molecular formula C11H12Cl2Si and molecular weight 243.20 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to chlorine substitution, an aromatic ring system, [2-(3,5-dichlorophenyl)ethynyl]trimethylsilane is typically off-white to pale yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 243.20 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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), [2-(3,5-dichlorophenyl)ethynyl]trimethylsilane 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 | C11H12Cl2Si |
| Molecular Weight | 243.20 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| 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.) | 2025 |
| Halogen Content | Cl-containing |
Related dichlorophenyl Standards
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