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CAS 78-10-4

CAS 78-10-4 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 78-10-4
CAS 78-10-4PubChem CID 6517

Tetraethoxysilane

Ethyl silicate appears as a clear colorless liquid with a faint odor. Flash point 125 °F. Less dense than water. Vapors are heavier than air. — CAMEO Chemicals

IUPAC name
tetraethyl silicate
Molecular formula
C8H20O4Si
Molecular weight
208.33 g/mol
Exact mass
208.11308565 Da
Topological polar surface area
36.9 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
4
Covalent units
1
Defined stereocentres
0

Also known as

Tetraethyl orthosilicateTEOSETHYL SILICATEDynasil ASilicon ethoxideSilicon tetraethoxideSilikan LEthyl orthosilicate
16 more reported names
TetraethoxysiliconEtylu krzemianTetraethylsilikatSilane, tetraethoxy-TetraethylorthosilicateSilicic acid, tetraethyl esterSilicate d'ethyleSilicate tetraethyliqueES 28 (ester)Ethyl silicate, ((EtO)4Si)Silicic acid (H4SiO4), tetraethyl esterTetraethyl-O-silicateES 28ES 100Orthosilicic acid, tetraethyl esterNSC-4790
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External database identifiers

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Records for CAS 78-10-4

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How CAS 78-10-4 is used on this site

CAS 78-10-4 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 0 EU annex records share this identifier, which helps you cross-check whether the same substance appears under one regulatory context or several.

Use this page when a supplier specification, SDS or raw-material dossier gives you CAS 78-10-4 and you need to see every linked Annex II–VI record in one place. The entry cards above are the quickest route to concentration limits, warnings, annex placement and product-type conditions.