Triethoxysilane

CAS 998-30-1(C2H5O)3SiHChemical Synthesis

Triethoxysilane (CAS: 998-30-1) is an organosilicon compound with the linear formula (C2H5O)3SiH and a molecular weight of 164.27 g/mol. This clear liquid is primarily employed in chemical synthesis, notably undergoing hydrosilylation reactions with olefins in the presence of platinum catalysts. It also serves as a useful reducing agent. Its properties make it valuable in materials science and in the preparation of nanomaterials and silsesquioxanes.

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Triethoxysilane ((C2H5O)3SiH) — chemical structure, CAS 998-30-1; Chemistry, fine chemical supplied by Tech Serve Solutions

Chemical SynthesisMaterials ScienceNanomaterialsOrganometallic ReagentsOrganosiliconOthersRSi(OR″)3Trialkoxysilanes More...

01 /Applications

Hydrosilylation Reactions

Triethoxysilane participates in hydrosilylation reactions with various olefins when catalysed by platinum complexes. This process is fundamental in organosilicon chemistry for forming new carbon-silicon bonds.

Reducing Agent

The Si-H bond in triethoxysilane allows it to function as a reducing agent in specific organic transformations. This capability is leveraged in synthetic routes where mild reduction is required.

Materials Science and Nanomaterials

This compound serves as a precursor and intermediate in the synthesis of advanced materials, including POSS (polyhedral oligomeric silsesquioxane) nanohybrids and other siloxane-based structures.

02 /Properties

Molecular weight	164.27
Linear formula	(C2H5O)3SiH
Assay	95%
Boiling point	134-135 °C(lit.)
Density	0.89 g/mL at 25 °C(lit.)
Refractive index	n20/D 1.377(lit.)
Application	Undergoes hydrosilylation reactions with olefins in the presence of Pt catalysts. Useful as a reducing agent.1

03 /Safety & handling

GHS hazard pictogram: Flammable (GHS02) — Flammable

GHS hazard pictogram: Corrosive (GHS05) — Corrosive

GHS hazard pictogram: Toxic (GHS06) — Toxic

Danger

Hazard statements

H226Flammable liquid and vapour
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	26 °C / 78.8 °F
Transport (UN / ADR)	UN 3384 6.1/PG 1
Water hazard class (WGK, DE)	3
Hazard codes (EU)	T+
Risk statements (R)	10-26-34
Safety statements (S)	26-28-36/37/39-45

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

998-30-1

MDL number

MFCD00009061

PubChem substance

24864320

Beilstein registry

1738989

05 /Quality & supply

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.

06 /Frequently asked questions

What is Triethoxysilane used for?

Triethoxysilane is used in chemical synthesis, particularly for hydrosilylation reactions with olefins and as a reducing agent. It is also employed in materials science and the preparation of nanomaterials and silsesquioxanes.

What are the CAS number and formula for Triethoxysilane?

The CAS number for Triethoxysilane is 998-30-1, and its linear formula is (C2H5O)3SiH.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies Triethoxysilane with an assay of 95%. We do not represent this product as USP, BP, EP, or pharmacopoeia grade.

How should Triethoxysilane be handled safely?

Triethoxysilane is a flammable liquid and vapour (H226) that causes severe skin burns and eye damage (H314) and is fatal if inhaled (H330). Handle with extreme caution in a well-ventilated area, using appropriate personal protective equipment including gloves, goggles, face shields, and respiratory protection.

How is Triethoxysilane packed, shipped, and exported?

Tech Serve Solutions packs, ships, and exports Triethoxysilane in compliance with all relevant international regulations for hazardous materials. Please contact us for specific shipping details.

How can I request a quote or sample for Triethoxysilane?

To request a quote or sample for Triethoxysilane, please use the contact form on our website or call our sales team directly. We will be pleased to assist you.