Sodium Naphthalenesulfonate

INCI: SODIUM NAPHTHALENESULFONATE

CAS Number
532-02-5
Function
Surfactant – Cleansing; Surfactant – Hydrotrope
Safety Rating
MODERATE

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes CIR: Safe for skin-applied cosmetics; insufficient data for mucous membrane contact or ingestion

For full compliance data across 55 jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
low
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Not supported for mucous membrane or ingestion routes; data gaps in reproductive/developmental toxicity and mammalian genotoxicity

⚠️
Concern Level: High

Frequently Asked Questions

Is Sodium Naphthalenesulfonate safe in cosmetics?

Not supported for mucous membrane or ingestion routes; data gaps in reproductive/developmental toxicity and mammalian genotoxicity The EU classifies Sodium Naphthalenesulfonate as "permitted". Safety rating: MODERATE.

Is Sodium Naphthalenesulfonate allowed in the EU?

Sodium Naphthalenesulfonate EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Sodium Naphthalenesulfonate do in cosmetics?

Sodium Naphthalenesulfonate functions as: Surfactant – Cleansing; Surfactant – Hydrotrope. It is classified as a cosmetic ingredient in our database. CAS number: 532-02-5.

What is the Margin of Safety for Sodium Naphthalenesulfonate?

not established The Margin of Safety (MoS) is calculated using SCCS methodology. A MoS above 100 is generally considered safe. Use the MoS Calculator tool to calculate MoS for your specific formulation and product category.

📱

Is Sodium Naphthalenesulfonate in Your Products?

Scan any product label with Piro — our free ingredient scanner. Point your camera at the ingredients list and get instant safety scores for every ingredient.

Try Piro Free →

Analyze Your Full Ingredient List

Paste any INCI list into the Decoder for instant safety analysis, or calculate the Margin of Safety for Sodium Naphthalenesulfonate in your formulation.