Sodium Hexeth-4 Carboxylate

INCI: SODIUM HEXETH-4 CARBOXYLATE

CAS Number
103819-47-4 (hexeth-4 carboxylic acid sodium salt)
Function
Surfactant – Cleansing, Surfactant – Emulsifying, Hydrotrope
Safety Rating
GOOD

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes Permitted for cosmetic use; no specific restriction

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Ethoxylated ingredient — must test for 1,4-dioxane residuals (NY limit: 2 ppm rinse-off / 10 ppm leave-on; CA Prop 65 threshold). Ensure ethylene oxide residuals are below specification

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Concern Level: Low

Frequently Asked Questions

Is Sodium Hexeth-4 Carboxylate safe in cosmetics?

Ethoxylated ingredient — must test for 1,4-dioxane residuals (NY limit: 2 ppm rinse-off / 10 ppm leave-on; CA Prop 65 threshold). Ensure ethylene oxide residuals are below specification The EU classifies Sodium Hexeth-4 Carboxylate as "permitted". Safety rating: GOOD.

Is Sodium Hexeth-4 Carboxylate allowed in the EU?

Sodium Hexeth-4 Carboxylate EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Sodium Hexeth-4 Carboxylate do in cosmetics?

Sodium Hexeth-4 Carboxylate functions as: Surfactant – Cleansing, Surfactant – Emulsifying, Hydrotrope. It is classified as a cosmetic ingredient in our database. CAS number: 103819-47-4 (hexeth-4 carboxylic acid sodium salt).

What is the Margin of Safety for Sodium Hexeth-4 Carboxylate?

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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