Trichloro(phenyl)silane
Trichloro(phenyl)silane (CAS: 98-13-5) is an organosilicon compound with the molecular formula C6H5SiCl3 and a molecular weight of 211.55 g/mol. This reactive silane is a valuable precursor in materials science and organic synthesis. It is frequently employed in the development of novel materials, micro/nanoelectronics, and as an intermediate in the synthesis of silsesquioxanes and POSS nanohybrids, owing to its ability to form robust siloxane networks.
- IUPAC
- Phenyltrichlorosilane
- Synonyms
- Phenyltrichlorosilane

POSS Precursors and Intermediates
Trichloro(phenyl)silane serves as a key building block for polyhedral oligomeric silsesquioxanes (POSS) and related nanohybrid materials. Its trifunctional nature allows for controlled network formation.
Micro/Nanoelectronics and Nanomaterials
This silane is utilised in advanced materials applications, including the fabrication of electronic components and the development of new nanomaterials. It can be involved in surface modification and self-assembly processes.
Organic Synthesis
As a reactive organochlorosilane, it finds utility in organic chemistry for introducing the phenylsilyl group into molecules or as a precursor for other organosilicon compounds through controlled hydrolysis and condensation reactions.
Self-Assembly Materials
The compound's structure lends itself to applications in self-assembly, enabling the creation of ordered molecular architectures for advanced functional surfaces and thin films.
| Molecular weight | 211.55 |
|---|---|
| Linear formula | C6H5SiCl3 |
| Assay | ≥97.0% |
| Boiling point | 201 °C(lit.) |
| Density | 1.321 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.523(lit.) |


Hazard statements
- H312Harmful in contact with skin
- H314Causes severe skin burns and eye damage
- H330Fatal if inhaled
Precautionary statements
- P260Do not breathe dust, fume, gas, mist, vapours or spray
- P280Wear protective gloves, clothing and eye/face protection
- P284Wear respiratory 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 | 91 °C / 195.8 °F |
| Transport (UN / ADR) | UN 1804 8 / PGII |
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | T |
| Risk statements (R) | 21/22-23-34 |
| Safety statements (S) | 23-26-36/37/39-45 |
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 Trichloro(phenyl)silane primarily used for?
+
Trichloro(phenyl)silane is primarily used as a precursor and intermediate in materials science, particularly for synthesising POSS nanohybrids and in micro/nanoelectronics. It also finds applications in general organic synthesis and self-assembly materials.
What are the CAS number and molecular formula for Trichloro(phenyl)silane?
+
The CAS number for Trichloro(phenyl)silane is 98-13-5 and its molecular formula is C6H5SiCl3.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies Trichloro(phenyl)silane with an assay of ≥97.0%. TSS does not represent this product as USP, BP, EP, or pharmacopoeia grade.
How should Trichloro(phenyl)silane be handled safely?
+
Trichloro(phenyl)silane is a dangerous substance. It causes severe skin burns and eye damage and is fatal if inhaled. Handle with extreme care, using full personal protective equipment including gloves, goggles, face shields, and appropriate respiratory protection. Ensure adequate ventilation. Refer to the Safety Data Sheet for detailed handling procedures.
Is Trichloro(phenyl)silane a controlled substance?
+
The provided data does not indicate that Trichloro(phenyl)silane is a controlled substance.
How is Trichloro(phenyl)silane packed, shipped, and exported?
+
Trichloro(phenyl)silane is shipped as a UN 1804 Class 8, Packing Group II hazardous material. TSS exports chemicals globally in compliance with all relevant international shipping regulations.
How can I request a sample or quote for Trichloro(phenyl)silane?
+
To request a sample or a quote for Trichloro(phenyl)silane, please contact the TSS sales department via the website or your designated sales representative.
▶ Related products

(11-Mercaptoundecyl)-N,N,N-trimethylammonium bromide
Micro / NanoElectronics

(11-Mercaptoundecyl)hexa(ethylene glycol)
C23H48O7S
Micro / NanoElectronics
(12-Phosphonododecyl)phosphonic acid
C12H28O6P2
Micro / NanoElectronics
(2,2,3,3,4,4,5,5,6,6,7,7,7-Tridecafluoroheptyl)oxirane
C9H5F13O
Micro / NanoElectronics
(2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,9-Heptadecafluorononyl)oxirane
C11H5F17O
Micro / NanoElectronics
(3-Chloropropyl)dimethoxymethylsilane
Cl(CH2)3Si(OCH3)2CH3
Micro / NanoElectronics
(3-Chloropropyl)trimethoxysilane
Cl(CH2)3Si(OCH3)3
Micro / NanoElectronics
(4-Bromophenyl)diphenylsulfonium triflate
C19H14BrF3O3S2
Micro / NanoElectronics▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis