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Tetraethyl Orthosilicate (TEOS)

Tetraethyl Orthosilicate (TEOS)

CAS Number: 78-10-4

Molecular Formula: C8H20O4Si

FlammableFlammable
IrritantIrritant

About Tetraethyl Orthosilicate (TEOS)

Tetraethoxysilane serves as a foundational precursor in advanced semiconductor fabrication utilizing chemical vapor deposition to deposit ultra-high purity silicon dioxide thin films, driving US domestic microelectronics procurement away from volatile global sourcing channels toward reliable domestic custom synthesis s...

Synonyms

  • Etylsilikat
  • tetraethylsilicat
  • tetraethoxy silicane
  • Tetraethylorthosilane
  • STEINFESTIGER OH
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Tetraethyl Orthosilicate (TEOS) Specifications

CAS Number
78-10-4
Molecular Formula
C8H20O4Si
Molecular Weight
208.33 g/mol
IUPAC Name
tetraethyl silicate
Canonical SMILES
CCO[Si](OCC)(OCC)OCC
InChI Key
BOTDANWDWHJENH-UHFFFAOYSA-N
InChI
InChI=1S/C8H20O4Si/c1-5-9-13(10-6-2,11-7-3)12-8-4/h5-8H2,1-4H3
PubChem CID
6517
EINECS Number
201-083-8
MDL Number
MFCD00009062

Tetraethyl Orthosilicate (TEOS) FAQs

Minimum Order Quantity

25 kg (evaluation) · 1 MT (commercial)

Lead Time

3 – 5 weeks estimated

Delivery Terms

FOB*

Packaging

20 L pails, 200 L HDPE drums, 1000 L IBC

US Availability

US Facility Inventory

Documentation

US SDS · COA · TDS · Specification sheet

US Regulatory & Quality Information

TSCA status*

US SDS / HazCom*

GHS classification*

ISO 9001:2015 site*

DOT shipping classification*

FDA status*

EPA status*

California Prop 65*

Reliable US supply chain

Regulatory compliance

On-time delivery

Technical expert support

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