C9-11 Pareth-40

INCI: C9-11 PARETH-40

CAS Number
68439-46-3
Function
Surfactant – emulsifying; Surfactant – cleansing
Safety Rating
EXCELLENT

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes Favorable; large MW and hydrophilicity minimize systemic exposure

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

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
negligible
Sensitization
high

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

1,4-Dioxane residual potential exists due to ethoxylation manufacturing process, but higher ethoxylation enables more effective stripping; demonstrates lower irritation risk compared to low-EO pareths.

⚠️
Concern Level: Low

Regulatory Flags

epa_safer_alternative ifra_fragrance

Frequently Asked Questions

Is C9-11 Pareth-40 safe in cosmetics?

1,4-Dioxane residual potential exists due to ethoxylation manufacturing process, but higher ethoxylation enables more effective stripping; demonstrates lower irritation risk compared to low-EO pareths. The EU classifies C9-11 Pareth-40 as "permitted". Safety rating: EXCELLENT.

Is C9-11 Pareth-40 allowed in the EU?

C9-11 Pareth-40 EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does C9-11 Pareth-40 do in cosmetics?

C9-11 Pareth-40 functions as: Surfactant – emulsifying; Surfactant – cleansing. It is classified as a cosmetic ingredient in our database. CAS number: 68439-46-3.

What is the Margin of Safety for C9-11 Pareth-40?

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.

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