PEG-45 STEARATE
Poly(oxy-1,2-ethanediyl), .alpha.-(1-oxooctadecyl)-.omega.-hydroxy- (45 mol EO average molar ratio)
PEG-45 STEARATE is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.
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.
Chemical identity and properties
Glycol monostearate
Polyoxyl 40 stearate is an octadecanoate ester composed of repeating 8-40 ethyleneoxy units. It is an ingredient used in cosmetics and beauty products primarily as a surfactant and emulsifier. It has a role as a nonionic surfactant, an emulsifier and a food emulsifier. It is a hydroxypolyether and an octadecanoate ester. — ChEBI
- IUPAC name
- 2-hydroxyethyl octadecanoate
- Molecular formula
- C20H40O3
- Molecular weight
- 328.5 g/mol
- Exact mass
- 328.29774513 Da
- XLogP3
- 7.8
- Topological polar surface area
- 46.5 Ų
- Hydrogen-bond donors
- 1
- Hydrogen-bond acceptors
- 3
- Covalent units
- 1
- Defined stereocentres
- 0
Also known as
16 more reported names
External database identifiers
- ChEBI:CHEBI:167626
- ChEBI:CHEBI:32027
- ChEMBL:CHEMBL2355383
- EPA DTXSID:DTXSID5026881
- PubMed:18717575
- PubMed:1680169
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 PEG-45 STEARATE
INCI name
PEG-45 STEARATE
Description
Poly(oxy-1,2-ethanediyl), .alpha.-(1-oxooctadecyl)-.omega.-hydroxy- (45 mol EO average molar ratio)
Record provenance
- Inventory reference
- 76911
- Imported identity
- PEG-45 STEARATE
- Source update
- 24/01/2011
Annex records for PEG-45 STEARATE
Key data
- 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).
- SURFACTANT - EMULSIFYING
- Helping suspensions or dispersions of liquids in a second liquid by reducing the surface tension of the substances to be emulsified.
Official EU ingredient-name evidence
The ingredient name exactly matches the official 2025 EU glossary of common ingredient names.
Related inventory evidence
Records sharing a CAS or EC identity
Ingredients with overlapping formulation functions
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
How PEG-45 STEARATE appears in the CosIng inventory
The CosIng inventory lists PEG-45 STEARATE 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.
PEG-45 STEARATE is also tagged with 2 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
Source note for PEG-45 STEARATE
This page reproduces the CosIng inventory entry for PEG-45 STEARATE 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 PEG-45 STEARATE and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.
Tools & next steps
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