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Sodium 2-naphthalenesulfonate

CAS 1159813-07-6

Also registered as 2 other CAS numbers

532-02-5 · 1321-69-3

Sodium 2-naphthalenesulfonate chemical structure

Concern score

Not assessed — no hazard data yet.

Sodium 2-naphthalenesulfonate in plain language

What it is

On cosmetic ingredient lists it appears as “Sodium naphthalenesulfonate”.

Also known as Sodium naphthalenesulfonate · .beta.-naphthalenesulfonic acid sodium salt · 2-NAPHTHALENESULFONATE · 2-NAPHTHALENESULFONIC acid, sodium salt · 2-NAPHTHALENESULFONIC acid, sodium salt (1:1) · Sodium naphthalene-2-sulfonate

Show all 20 names

2-​Naphthalenesulfonic acid, sodium salt (1:1) · NAPHTHALENE-2-SULFONATE, sodium · Nsa · SNS (in cosmetics) · Sodium .beta.-naphthalenesulfonate · Sodium .beta.-naphthalenesulphonate · Sodium 2-NAPHTHALENESULPHONATE · Sodium NAPHTHALENE-6-SULFONATE · Sodium NAPHTHALENE-6-SULPHONATE · Sodium naphthalene-2-sulphonate · Sodium β-naphthalenesulfonate · UNII-R5F0CTD2OJ · beta-Naphthalenesulfonic sodium salt · β-Naphthalenesulfonic acid sodium salt

What it does

Used in cosmetics as a cleansing agent and a hydrotrope.

  • Cleansing
  • Hydrotrope
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. Sodium 2-naphthalenesulfonate appears in these published regulatory listings.

Recorded in these product areas

  • Found in consumer products
  • Beauty
  • EUCosIngActiveListed in CosIng inventory for cosmetic use.
    • Listed in CosIng inventory for cosmetic use.Source →
  • USEPAcommercial use observedEPA CPDat observed this chemical in 2 composition records across product categories including Personal care, Construction and building materials.
    • EPA CPDat observed this chemical in 2 composition records across product categories including Personal care, Construction and building materials.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 Sodium 2-naphthalenesulfonate. 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 Sodium 2-naphthalenesulfonate 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 January 7, 2008

    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 Sodium 2-naphthalenesulfonate in a product composition. These are source records, not Greenveil catalog products.

Source records

2

Named organisations

1

Personal careConstruction and building materials

Typical roles

CleansingHydrotrope
See products using Sodium 2-naphthalenesulfonate →