What does Triethyl phosphate do?

Used in cosmetics as a solvent.

Is Triethyl phosphate safe?

We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.

beauty
industrial

Triethyl phosphate

CAS 78-40-0

Concern score

Not assessed — no hazard data yet.

Triethyl phosphate in plain language

What it is: Also known as Triethylfosfat · C6H15O4P · CAS-78-40-0 · Ethyl phosphate · Ethyl phosphate ((EtO)3PO) · Levagard TEP
Show all 17 names
Phosphate de triethyle · Triethyl Ester Phosphoric Acid · Triaethylphosphat · Tri-ethyl phosphate · Triethoxyphosphine oxide · Triethyl Posphate · Tris(ethyl) phosphate · fosfato de trietilo · o-Phosphoric acid triethyl ester · triethyl phosphate (tep) · triethylphosphate
What it does: Used in cosmetics as a solvent.
Solvent
Is it a concern?: We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.

Regulation

No restrictions found. Triethyl phosphate appears in these published regulatory listings.

Recorded in these product areas

Found in consumer products
Industrial

EUCosIngActiveListed in CosIng inventory for cosmetic use.
- Listed in CosIng inventory for cosmetic use.Source →
USEPAcommercial use observedEPA CPDat observed this chemical in 35 composition records across product categories including Construction and building materials, Raw materials, Electronics/small appliances. EPA CPDat classifies this chemical for functional uses including Solvent, Flame retardant, Plasticizer.
- EPA CPDat observed this chemical in 35 composition records across product categories including Construction and building materials, Raw materials, Electronics/small appliances. EPA CPDat classifies this chemical for functional uses including Solvent, Flame retardant, Plasticizer.Source →
USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
- openFDA substance registry classifies this ingredient as chemical.Source →

Expert safety opinions

No expert opinion on file for Triethyl phosphate. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.

SCCS
EU Scientific Committee on Consumer Safety
No SCCS opinion on file.
CIR
Cosmetic Ingredient Review (US expert panel)
No CIR safety assessment on file.

Evidence & sources

No graded research studies for Triethyl phosphate yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

6 data sources

Where this comes from

CosIng
regulatory · updated 2026-09-23
Open →
EPA Chemical and Products Database
exposure · updated march 28, 2017
Open →
EPA DSSTox Identifiers
chemistry · updated 2025-12-29
Open →
FDA GSRS UNII
registry · updated 2026-02-26
Open →
openFDA Substance
registry · updated 2026-05-24
Open →
PubChem Live Enrichment
chemistry · updated 2026-05-17
Open →

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Fragrance avoidance

Nothing to weigh for this context yet.

No signal in this context

We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.

Where it has been recorded

How often EPA CPDat has listed Triethyl phosphate in a product composition. These are source records, not Greenveil catalog products.

Source records

Named organisations

Construction and building materialsRaw materialsElectronics/small appliancesLaboratory supplies

Typical roles

Solvent

See products using Triethyl phosphate →