Toluene Sulfonic Acid

INCI: TOLUENE SULFONIC ACID

CAS Number
104-15-4 (p-toluenesulfonic acid)
Function
pH adjuster, catalyst, solubilizer in formulations
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Permitted in cosmetics; not restricted

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

Strong acid โ€” corrosive at high concentrations; requires pH buffering; must ensure final product pH is within safe range

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Concern Level: Low

Frequently Asked Questions

Is Toluene Sulfonic Acid safe in cosmetics?

Strong acid โ€” corrosive at high concentrations; requires pH buffering; must ensure final product pH is within safe range The EU classifies Toluene Sulfonic Acid as "permitted". Safety rating: GOOD.

Is Toluene Sulfonic Acid allowed in the EU?

Toluene Sulfonic Acid EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Toluene Sulfonic Acid do in cosmetics?

Toluene Sulfonic Acid functions as: pH adjuster, catalyst, solubilizer in formulations. It is classified as a cosmetic ingredient in our database. CAS number: 104-15-4 (p-toluenesulfonic acid).

What is the Margin of Safety for Toluene Sulfonic Acid?

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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