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CAS 78-40-0 may appear across multiple EU annex records. The CAS lookup page shows all Annex II–VI entries sharing this identifier, useful for identifying cross-annex regulatory status of the same chemical substance.

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InventoryRef 5982615/10/2010

TRIETHYL PHOSPHATE

Phosphoric Acid, Triethyl Ester

TRIETHYL PHOSPHATE is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.

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Regulatory evidence by market

No rule for this ingredient has been imported for any of the 13 markets tracked here.

That describes this inventory, not the law. No imported rule is not evidence that an ingredient is permitted: a rule may exist under another name or identifier, or in a dataset not yet imported here.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 78-40-0

CAS 78-40-0PubChem CID 6535

Triethyl Phosphate

Triethyl phosphate is a trialkyl phosphate that is the triethy ester derivative of phosphoric acid. It is functionally related to an ethanol. — ChEBI

IUPAC name: triethyl phosphate

Molecular formula: C6H15O4P
Molecular weight: 182.15 g/mol
Exact mass: 182.07079595 Da
XLogP3: 0.8
Topological polar surface area: 44.8 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 4
Covalent units: 1
Defined stereocentres: 0

Also known as

TriethylphosphateTris(ethyl) phosphateTriethoxyphosphine oxidePhosphoric acid, triethyl esterTriethylfosfatEthyl phosphate ((EtO)3PO)o-Phosphoric acid triethyl esterQIH4K96K7J

16 more reported names

NSC-2677CHEBI:45927201-114-5RefChem:191513Ethyl phosphatePhosphoric Acid Triethyl EsterTEPC6H15O4PNSC 2677Triethylfosfat [Czech]CAS-78-40-0CCRIS 4882HSDB 2561EINECS 201-114-5UNII-QIH4K96K7JBRN 1705772

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEBI:CHEBI:45927
ChEMBL:CHEMBL1236251
EPA DTXSID:DTXSID8026228
PubMed:22551874
PubMed:22325320
PubMed:22029908
PubMed:21782747
PubMed:21625485
PubMed:21487840
PubMed:20976353
PubMed:19962821
PubMed:19833891
PubMed:19757789
PubMed:19630032
PubMed:19318500

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

Inventory details for TRIETHYL PHOSPHATE

INCI name

TRIETHYL PHOSPHATE

Description

Phosphoric Acid, Triethyl Ester

Record provenance

Inventory reference: 59826
Imported identity: TRIETHYL PHOSPHATE
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for TRIETHYL PHOSPHATE

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Key data

CAS

78-40-0

201-114-5

Restriction

—

Function

SOLVENT: Dissolving other components of cosmetics. Solvents are usually liquids (aqueous and nonaqueous).

Official EU ingredient-name evidence

The ingredient name exactly matches the official 2025 EU glossary of common ingredient names.

#29163 · TRIETHYL PHOSPHATE

Ingredients with overlapping formulation functions

TRIACETINANTIMICROBIAL, FILM FORMING, FRAGRANCE, PLASTICISER, SOLVENT

TRIBUTYL CITRATEFILM FORMING, PLASTICISER, SOLVENT

TRIBUTYLCRESYLBUTANEFILM FORMING, PLASTICISER, SOLVENT

TRICHLOROETHANESOLVENT

TRIMETHYL PENTANOL HYDROXYETHYL ETHERSOLVENT, VISCOSITY CONTROLLING

TRIMETHYL-1,3-PENTANEDIOLSOLVENT

TRIMETHYLBENZENESOLVENT

TRIMETHYLHEXANOLFRAGRANCE, SOLVENT

Additional official and scientific sources

11 external databases to check this identity in

Each link searches that source for this identity. What each source is, and its legal weight

ECHA CHEM / Information on chemicals PubChem PUG REST EU Safety Gate cosmetic product alerts ECHA CHEM US EPA CompTox 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

How TRIETHYL PHOSPHATE appears in the CosIng inventory

The CosIng inventory lists TRIETHYL PHOSPHATE as a cosmetic ingredient and this page links it to 0 annex records. The inventory entry captures names and identifiers, while the annex records show where the substance is prohibited, restricted or positively listed in EU cosmetics law.

TRIETHYL PHOSPHATE is also tagged with 1 cosmetic function in the official data. Function labels describe intended use, but they do not replace regulatory review of linked annex records before formulation or labelling work.

Frequently asked questions

TRIETHYL PHOSPHATE is listed in the EU CosIng ingredient inventory with no direct annex restriction records linked at this time. Absence of an annex link does not guarantee unrestricted use — always verify against the current official CosIng database before formulating.

According to the EU CosIng inventory, TRIETHYL PHOSPHATE carries the following function designation(s):

SOLVENT

CAS 78-40-0 may appear across multiple EU annex records. Viewing the CAS lookup page shows all Annex II–VI entries sharing this identifier, which is useful for identifying cross-annex regulatory status of the same chemical substance.

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Source note for TRIETHYL PHOSPHATE

This page reproduces the CosIng inventory entry for TRIETHYL PHOSPHATE from public European Commission cosmetic ingredient materials and shows linked identifiers even when no direct annex match is currently attached.

Use this inventory page to research TRIETHYL PHOSPHATE and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.

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