Triethoxymethylsilane, 99%

Name: Triethoxymethylsilane, 99%
Brand: Vaqora Chemicals
SKU: VQ-018438

About Triethoxymethylsilane, 99%

Triethoxymethylsilane is an electronic material carrying the CAS registry number 2031-67-6 with a typical assay of 99%. Formula C7H18O3Si, molecular weight 178.3 g/mol. Alternative names: Methyltriethoxysilane and MTEOS.

In its supplied form it is a colourless liquid. Reported physical data include a boiling point of 141-143 °C and a density of 0.895 g/mL at 25 °C. Keep containers tightly closed in a cool, well-ventilated area away from heat and ignition sources. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

Typical applications include semiconductor research, electronic devices, thin films and polymer and resin production. Typical end-use sectors are academic and industrial research and electronics and semiconductors.

Vaqora Chemicals supplies Triethoxymethylsilane in 25 mL, 500 mL and 180 kg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Semiconductor research
Electronic devices
Thin films
Polymer & resin production

Industries

Specifications & identifiers

Chemical identifiers
Product name	Triethoxymethylsilane, 99%
Catalogue No.	VQ-018438
CAS Number	2031-67-6
IUPAC name	triethoxy(methyl)silane
Molecular formula	C₇H₁₈O₃Si
Molecular weight	178.3 g/mol
Exact mass	178.1025
Purity / assay	99%
HSN code	29319090
InChIKey	CPUDPFPXCZDNGI-UHFFFAOYSA-N
SMILES	CCO[Si](C)(OCC)OCC
PubChem CID	16241

Physical properties
Physical form	Liquid
Appearance	Colourless liquid
Boiling point	141-143 °C
Density	0.895 g/mL at 25 °C
H-bond donors / acceptors	0 / 3
TPSA	27.7 Å²
Synonyms	Methyltriethoxysilane, MTEOS, Methyl triethoxysilane, Silane, triethoxymethyl-, Triethoxysilylmethane, Union carbide A-162, ICI-EP 5850, Methaneorthosiliconic acid, triethyl ester, Dynasylan MTES, methyl triethoxy silane, methyl(triethoxy)silane, Triethoxymethylsilane, 99%

Safety & hazard information (GHS)

Flammable

Signal word: Warning

Hazard statements

H226Flammable liquid and vapor

Precautionary statements: P210, P233, P240, P241, P242, P243, P280, P303 + P361 + P353, P370 + P378, P403 + P235, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Triethoxymethylsilane, 99%?

The CAS Registry Number of Triethoxymethylsilane, 99% is 2031-67-6. It is also known as Methyltriethoxysilane, MTEOS, Methyl triethoxysilane.

What is the molecular formula and molecular weight of Triethoxymethylsilane, 99%?

Triethoxymethylsilane, 99% has the molecular formula C7H18O3Si and a molecular weight of 178.3 g/mol. Its IUPAC name is triethoxy(methyl)silane.

Which grade and pack sizes of Triethoxymethylsilane, 99% can I order?

We supply Triethoxymethylsilane, 99% in (99%) grade, in 25 mL, 500 mL, 180 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Triethoxymethylsilane, 99%?

Yes. Every lot of Triethoxymethylsilane, 99% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Triethoxymethylsilane, 99% be shipped internationally?

Yes. Triethoxymethylsilane, 99% is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.