What function does NONOXYNOL-10 PHOSPHATE serve in cosmetics?

According to the EU CosIng inventory, NONOXYNOL-10 PHOSPHATE carries the following function designation(s): SURFACTANT - EMULSIFYING, SURFACTANT - HYDROTROPE, SURFACTANT - CLEANSING.

How do I check if my formula contains NONOXYNOL-10 PHOSPHATE?

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InventoryRef cosing-live-1051912024-08-26

NONOXYNOL-10 PHOSPHATE

Nonoxynol-10 Phosphate is a complex mixture of esters of phosphoric acid and Nonoxynol-10.

NONOXYNOL-10 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 51609-41-7

CAS 51609-41-7PubChem CID 65414

3,6,9,12,15,18,21,24-Octaoxahexacosan-1-ol, 26-(nonylphenoxy)-, dihydrogen phosphate

IUPAC name: 2-[2-[2-[2-[2-[2-[2-[2-[2-[2-(4-nonylphenoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethyl dihydrogen phosphate

Molecular formula: C35H65O14P
Molecular weight: 740.9 g/mol
Exact mass: 740.41119374 Da
XLogP3: 3.4
Topological polar surface area: 159.0 Å²
Hydrogen-bond donors: 2
Hydrogen-bond acceptors: 14
Covalent units: 1
Defined stereocentres: 0

Also known as

2-(2-(2-(2-(2-(2-(2-(2-(2-(2-(4-nonylphenoxy)ethoxy)ethoxy)ethoxy)ethoxy)ethoxy)ethoxy)ethoxy)ethoxy)ethoxy)ethyl dihydrogen phosphateRefChem:487146610-709-2QKBKGDSRBJNQCP-UHFFFAOYSA-NPEG-9 Nonyl phenyl ether phosphate29-(4-Nonylphenoxy)-3,6,9,12,15,18,21,24,27-nonaoxanonacos-1-yl dihydrogen phosphate29-(4-Nonylphenoxy)-3,6,9,12,15,18,21,24,27-nonaoxanonacosan-1-yl dihydrogen phosphate

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

EPA DTXSID:DTXSID10866210

Retrieved from NIH PubChem on 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Official European Commission record

CosIng substance ID: 105191
Entry status: Active
Published in the Official Journal: Yes
Recorded by the Commission: 2024-08-26

Open this entry in the official CosIng database

Fields as published by the European Commission. The link opens the entry itself, not a search for it.

Inventory details for NONOXYNOL-10 PHOSPHATE

INCI name

NONOXYNOL-10 PHOSPHATE

Description

Nonoxynol-10 Phosphate is a complex mixture of esters of phosphoric acid and Nonoxynol-10.

Record provenance

Inventory reference: cosing-live-105191
Imported identity: NONOXYNOL-10 PHOSPHATE
Source update: 2024-08-26

European Commission CosIng source notes

Annex records for NONOXYNOL-10 PHOSPHATE

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Key data

CAS

51609-41-7 (generic)

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Restriction

—

Function

SURFACTANT - EMULSIFYING: Helping suspensions or dispersions of liquids in a second liquid by reducing the surface tension of the substances to be emulsified.
SURFACTANT - HYDROTROPE: Enhancing the water solubility of another surfactant.
SURFACTANT - CLEANSING: Wetting body surfaces, emulsifying or solubilizing oils, and suspending soil (generally, such ingredients contribute to the foaming and lathering properties of cleansing products).

Official EU ingredient-name evidence

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

#17557 · NONOXYNOL-10 PHOSPHATE

Ingredients with overlapping formulation functions

MIPA-C12-14 SEC-PARETH-3 ACETATECLEANSING, SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING, SURFACTANT - FOAM BOOSTING, SURFACTANT…

MYRISTAMIDOPROPYLAMINE OXIDEANTISTATIC, CLEANSING, HAIR CONDITIONING, SURFACTANT - CLEANSING, SURFACTANT - FOAM BOOSTING, SURFA…

MYRISTAMINE OXIDEANTISTATIC, CLEANSING, HAIR CONDITIONING, SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING, SURFACT…

MYRISTYL/CETYL AMINE OXIDECLEANSING, HAIR CONDITIONING, SURFACTANT - CLEANSING, SURFACTANT - FOAM BOOSTING, SURFACTANT - HYDR…

NONOXYNOL-3 PHOSPHATESURFACTANT - EMULSIFYING; SURFACTANT - HYDROTROPE; SURFACTANT - CLEANSING

NONOXYNOL-4 PHOSPHATESURFACTANT - EMULSIFYING; SURFACTANT - HYDROTROPE; SURFACTANT - CLEANSING

NONOXYNOL-6 PHOSPHATESURFACTANT - EMULSIFYING; SURFACTANT - HYDROTROPE; SURFACTANT - CLEANSING

NONOXYNOL-9 PHOSPHATESURFACTANT - EMULSIFYING; SURFACTANT - HYDROTROPE; SURFACTANT - CLEANSING

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 NONOXYNOL-10 PHOSPHATE appears in the CosIng inventory

The CosIng inventory lists NONOXYNOL-10 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.

NONOXYNOL-10 PHOSPHATE is also tagged with 3 cosmetic functions 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

NONOXYNOL-10 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, NONOXYNOL-10 PHOSPHATE carries the following function designation(s):

CAS 51609-41-7 (generic) 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.

Use the INCI Checker to screen a full ingredient list across selected markets, or compare this substance across all supported market datasets.

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Source note for NONOXYNOL-10 PHOSPHATE

This page reproduces the CosIng inventory entry for NONOXYNOL-10 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 NONOXYNOL-10 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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