Official EU label nameGlossary entry 28551

TETRAETHYL ORTHOSILICATE

This record confirms an official common ingredient name for EU cosmetic product labelling. It does not by itself confirm that the substance is permitted, unrestricted or safe.

Global evidence snapshot

The resolved identity has matching regulatory evidence in 0 of 13 indexed market datasets: 0 country records and 0 EU Annex records. Every result and evidence gap is listed below.

0 markets with evidence

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Markets with evidence

Evidence gaps

Resolved identifiers

Resolved substance identity

CAS:78-10-4

EC:201-083-8

Ingredient index records:

TETRAETHYL ORTHOSILICATE

Cosmetic functions: NOT REPORTED

Ethyl Silicate,Silicic acid (H4SiO4), tetraethyl ester,TEOS

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1 matched or reported name

TETRAETHYL ORTHOSILICATE

Regulatory evidence across markets

None of the 13 markets tracked here holds an imported rule under the name TETRAETHYL ORTHOSILICATE.

That is a statement about this inventory, not about the law: no imported rule is not evidence that a substance is permitted. A rule may exist under a different name, under a CAS or EC number this glossary entry does not carry, or in a dataset not yet imported.

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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 Å²
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

ChEMBL:CHEMBL3187981
EPA DTXSID:DTXSID6026450
PubMed:27362941
PubMed:23095450
PubMed:23066223
PubMed:23037590
PubMed:23031700
PubMed:23030055
PubMed:22975394
PubMed:22966598
PubMed:22950680
PubMed:22941423
PubMed:22928380
PubMed:22920409

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

Additional authoritative substance research

Each link searches that source for this identity. A link is a research route, not a claim that the source holds an exact record. What each source is, and its legal weight

Cosmetic Ingredient Review safety assessments FDA Global Substance Registration System ILO/WHO International Chemical Safety Cards Japan NITE-CHRIP NIOSH Pocket Guide to Chemical Hazards OECD eChemPortal US EPA CompTox CTX APIs

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Official source and scope

Imported from Commission Implementing Decision (EU) 2025/1175 (dataset version EU 2025/1175). The glossary supplies common ingredient names for the ingredient list required by Article 19(1)(g); it is not an approval or safety list.

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