Trimethoxysilane

CAS 2487-90-3(CH3O)3SiHChemical Synthesis

Trimethoxysilane (CAS: 2487-90-3) is a versatile organosilicon compound with the linear formula (CH3O)3SiH and a molecular weight of 122.20 g/mol. This chemical is primarily utilised in synthesis reactions, functioning as a reducing agent and a precursor in organometallic chemistry. Its reactivity makes it a valuable intermediate for specialised chemical manufacturing processes requiring precise silicon incorporation.

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Trimethoxysilane ((CH3O)3SiH) — chemical structure, CAS 2487-90-3; Chemistry, fine chemical supplied by Tech Serve Solutions

Chemical SynthesisOrganometallic ReagentsOrganosiliconTrialkoxysilanes

01 /Applications

Chemical Synthesis

Trimethoxysilane serves as a reagent in various organic synthesis pathways, particularly for the introduction of silicon functionalities into molecules. It is employed in reduction reactions and as a building block for more complex organosilicon compounds.

Organometallic Chemistry

This compound is used as a precursor or reagent in the field of organometallic chemistry. Its unique structure facilitates reactions involving metal-carbon bonds and the formation of novel organometallic complexes.

Material Science Precursor

The silane functionality allows Trimethoxysilane to act as a precursor in the development of silicon-containing materials. It can be involved in sol-gel processes or surface modification applications.

02 /Properties

Molecular weight	122.20
Linear formula	(CH3O)3SiH
Assay	95%
Grade	technical
Boiling point	81 °C(lit.)
Density	0.96 g/mL at 25 °C(lit.)
Refractive index	n20/D 1.358(lit.)
Melting point	−115 °C(lit.)
Vapour pressure	<7.2 mmHg (20 °C)
Vapour density	>1 (vs air)

03 /Safety & handling

GHS hazard pictogram: Flammable (GHS02) — Flammable

GHS hazard pictogram: Toxic (GHS06) — Toxic

Danger

Hazard statements

H225Highly flammable liquid and vapour
H319Causes serious eye irritation
H330Fatal if inhaled

Precautionary statements

P210Keep away from heat, sparks and open flames. No smoking
P260Do not breathe dust, fume, gas, mist, vapours or spray
P284Wear respiratory protection
P305IF IN EYES
P310Immediately call a POISON CENTER or doctor

Protective equipment	Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
Flash point	9 °C / 48.2 °F
Transport (UN / ADR)	UN 3384 6.1/PG 1
Water hazard class (WGK, DE)	3
Hazard codes (EU)	F,T+
Risk statements (R)	11-26-36
Safety statements (S)	16-36/37/39-45

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

04 /Identifiers & registry

CAS number

2487-90-3

MDL number

MFCD00008340

PubChem substance

24889317

Beilstein registry

1697990

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 Trimethoxysilane used for?

Trimethoxysilane is primarily used in chemical synthesis, particularly in organometallic chemistry and as a precursor for silicon-containing materials. It functions as a reducing agent and a silicon-introducing reagent.

What is the CAS number and formula for Trimethoxysilane?

The CAS number for Trimethoxysilane is 2487-90-3 and its linear formula is (CH3O)3SiH.

What grade and purity does Tech Serve Solutions supply?

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

How should Trimethoxysilane be handled safely?

Trimethoxysilane is a highly flammable liquid and vapour (H225), causing serious eye irritation (H319) and is toxic if inhaled (H330). Handle with extreme caution in a well-ventilated area, away from ignition sources, using appropriate personal protective equipment including eyeshields, faceshields, and respiratory protection (full-face respirator or type ABEK filter).

How is Trimethoxysilane packed and shipped?

Trimethoxysilane is packed according to relevant transport regulations for hazardous materials (UN 3384, Class 6.1, Packing Group I). As a global supplier, Tech Serve Solutions ensures compliant packaging and export documentation for international shipment.

How can I request a sample or a quote for Trimethoxysilane?

To request a sample or a quote for Trimethoxysilane, please contact our sales team via the website or direct email, specifying your required quantity and delivery location.