Chlorophenylsilane
Chlorophenylsilane (CAS: 4206-75-1, Formula: C6H5SiH2Cl) is a reactive organosilicon compound with a molecular weight of 142.66 g/mol. This colourless liquid serves as a valuable building block in organic synthesis and as a reagent for introducing silicon-based functional groups. It is primarily utilised in chemical synthesis and as a protecting or derivatizing agent in various research and development applications.

Chemical Synthesis Intermediate
Chlorophenylsilane acts as a versatile intermediate in the synthesis of more complex organosilicon compounds. Its reactive Si-Cl bond allows for nucleophilic substitution reactions, enabling the formation of new carbon-silicon or other silicon-heteroatom bonds.
Protecting Group Chemistry
In organic synthesis, Chlorophenylsilane can be employed to protect hydroxyl or amine functionalities. The resulting silyl ethers or silyl amines are stable under various reaction conditions and can be selectively removed later in the synthetic sequence.
Derivatization Reagent
This compound can be used to derivatize molecules for analytical purposes, such as gas chromatography. The introduction of a silyl group can improve volatility and thermal stability of analytes.
Research and Development
Chlorophenylsilane is a useful reagent in academic and industrial research labs exploring novel silicon-containing materials or reaction pathways. Its specific reactivity profile makes it suitable for targeted synthetic transformations.
| Molecular weight | 142.66 |
|---|---|
| Linear formula | C6H5SiH2Cl |
| Assay | 97% |
| Boiling point | 41 °C/9 mmHg(lit.) |
| Density | 1.070 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.5260(lit.) |


Hazard statements
- H226Flammable liquid and vapour
- H314Causes severe skin burns and eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 54 °C / 129.2 °F |
| Transport (UN / ADR) | UN 2920 3(8) / PGII |
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | C |
| Risk statements (R) | 10-34 |
| Safety statements (S) | 16-26-36/37/39-45 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Chlorophenylsilane used for?
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Chlorophenylsilane is primarily used in chemical synthesis as an intermediate, and as a reagent for protecting or derivatizing other molecules, particularly in research and development settings.
What are the CAS number and formula for Chlorophenylsilane?
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The CAS number for Chlorophenylsilane is 4206-75-1, and its chemical formula is C6H5SiH2Cl.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Chlorophenylsilane with a minimum assay of 97%. This product is intended for research and technical use and is not represented as USP, BP, EP, or pharmaceutical grade.
How should Chlorophenylsilane be handled safely?
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Chlorophenylsilane is a flammable liquid and causes severe skin burns and eye damage. Handle with extreme care in a well-ventilated area, wearing appropriate personal protective equipment including gloves, goggles, face shield, and respiratory protection. Refer to the Safety Data Sheet for detailed handling procedures.
Is Chlorophenylsilane shipped internationally?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including Chlorophenylsilane, and can arrange for international shipment according to regulations.
How can I request a quote or sample of Chlorophenylsilane?
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To request a quote or a sample of Chlorophenylsilane, please contact our sales department via the website or provide your details through the product inquiry form.
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