SODIUM OCTOXYNOL-2 ETHANE SULFONATE
Sodium 2-[2-[2-[4-(1,1,3,3-tetramethylbutyl)phenoxy]ethoxy]ethoxy]ethanesulphonate
SODIUM OCTOXYNOL-2 ETHANE SULFONATE 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
Entsufon Sodium
The Panel also concluded that ... Sodium Octoxynol-2 Ethane Sulfonate is safe as used in rinse-off cosmetic products and safe at concentrations of 5% in leave-on cosmetic products. — Cosmetic Ingredient Review (CIR)
- IUPAC name
- sodium 2-[2-[2-[4-(2,4,4-trimethylpentan-2-yl)phenoxy]ethoxy]ethoxy]ethanesulfonate
- Molecular formula
- C20H33NaO6S
- Molecular weight
- 424.5 g/mol
- Exact mass
- 424.18955422 Da
- Topological polar surface area
- 93.3 Ų
- Hydrogen-bond donors
- 0
- Hydrogen-bond acceptors
- 6
- Covalent units
- 2
- Defined stereocentres
- 0
Also known as
16 more reported names
External database identifiers
- ChEMBL:CHEMBL2106682
- EPA DTXSID:DTXSID3042398
Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.
Entsufon
Entsufon is a small molecule drug. Entsufon has a monoisotopic molecular weight of 402.21 Da. — DrugBank
- IUPAC name
- 2-[2-[2-[4-(2,4,4-trimethylpentan-2-yl)phenoxy]ethoxy]ethoxy]ethanesulfonic acid
- Molecular formula
- C20H34O6S
- Molecular weight
- 402.5 g/mol
- Exact mass
- 402.20760997 Da
- XLogP3
- 3.9
- Topological polar surface area
- 90.4 Ų
- Hydrogen-bond donors
- 1
- Hydrogen-bond acceptors
- 6
- Covalent units
- 1
- Defined stereocentres
- 0
Also known as
1 more reported name
External database identifiers
- ChEMBL:CHEMBL2110927
- EPA DTXSID:DTXSID70204432
Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.
Ethanesulfonic acid, 2-(2-(2-(octylphenoxy)ethoxy)ethoxy)-, sodium salt
- IUPAC name
- sodium 2-[2-[2-(2-octylphenoxy)ethoxy]ethoxy]ethanesulfonate
- Molecular formula
- C20H33NaO6S
- Molecular weight
- 424.5 g/mol
- Exact mass
- 424.18955422 Da
- Topological polar surface area
- 93.3 Ų
- Hydrogen-bond donors
- 0
- Hydrogen-bond acceptors
- 6
- Covalent units
- 2
- Defined stereocentres
- 0
Also known as
External database identifiers
- EPA DTXSID:DTXSID20987304
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 SODIUM OCTOXYNOL-2 ETHANE SULFONATE
INCI name
SODIUM OCTOXYNOL-2 ETHANE SULFONATE
INN name
entsufon
Description
Sodium 2-[2-[2-[4-(1,1,3,3-tetramethylbutyl)phenoxy]ethoxy]ethoxy]ethanesulphonate
Record provenance
- Inventory reference
- 79883
- Imported identity
- SODIUM OCTOXYNOL-2 ETHANE SULFONATE
- Source update
- 15/10/2010
Annex records for SODIUM OCTOXYNOL-2 ETHANE SULFONATE
Key data
- CLEANSING
- Helping to keep the body surface clean.
- 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
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 SODIUM OCTOXYNOL-2 ETHANE SULFONATE appears in the CosIng inventory
The CosIng inventory lists SODIUM OCTOXYNOL-2 ETHANE SULFONATE 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.
SODIUM OCTOXYNOL-2 ETHANE SULFONATE 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
Source note for SODIUM OCTOXYNOL-2 ETHANE SULFONATE
This page reproduces the CosIng inventory entry for SODIUM OCTOXYNOL-2 ETHANE SULFONATE 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 SODIUM OCTOXYNOL-2 ETHANE SULFONATE 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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