Sodium Toluenesulfonate

INCI: SODIUM TOLUENESULFONATE

CAS Number
657-84-1
Function
Hydrotrope, solubilizer, viscosity controlling agent (keeps surfactant systems clear and stable)
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Permitted for cosmetic use; CIR (Cosmetic Ingredient Review) assessed as safe in current practices of use

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

Safety Data

Margin of Safety (MoS)
adequate
Dermal Absorption
low
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

No major concerns; primarily a processing aid (hydrotrope) rather than active ingredient; impurity control important (trace toluene possible from synthesis)

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Concern Level: Low

Regulatory Flags

epa_safer_alternative

Frequently Asked Questions

Is Sodium Toluenesulfonate safe in cosmetics?

No major concerns; primarily a processing aid (hydrotrope) rather than active ingredient; impurity control important (trace toluene possible from synthesis) The EU classifies Sodium Toluenesulfonate as "permitted". Safety rating: GOOD.

Is Sodium Toluenesulfonate allowed in the EU?

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

What does Sodium Toluenesulfonate do in cosmetics?

Sodium Toluenesulfonate functions as: Hydrotrope, solubilizer, viscosity controlling agent (keeps surfactant systems clear and stable). It is classified as a cosmetic ingredient in our database. CAS number: 657-84-1.

What is the Margin of Safety for Sodium Toluenesulfonate?

adequate 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.

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