Ceteth-20 Itaconate

INCI: CETETH-20 ITACONATE

CAS Number
Not assigned (monomer intermediate; typically used as copolymer — Acrylates/Ceteth-20 Itaconate Copolymer)
Function
Monomer and half-ester for film-forming copolymers
Safety Rating
MODERATE

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes No specific CIR assessment; the copolymer form (Acrylates/Ceteth-20 Itaconate Copolymer) is used in hair styling products

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Limited safety data as standalone ingredient; 1,4-dioxane impurity from ethoxylation process is a consideration; CPSR requires supplier certificate of analysis and toxicological dossier

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Concern Level: Moderate

Frequently Asked Questions

Is Ceteth-20 Itaconate safe in cosmetics?

Limited safety data as standalone ingredient; 1,4-dioxane impurity from ethoxylation process is a consideration; CPSR requires supplier certificate of analysis and toxicological dossier The EU classifies Ceteth-20 Itaconate as "permitted". Safety rating: MODERATE.

Is Ceteth-20 Itaconate allowed in the EU?

Ceteth-20 Itaconate EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Ceteth-20 Itaconate do in cosmetics?

Ceteth-20 Itaconate functions as: Monomer and half-ester for film-forming copolymers. It is classified as a cosmetic ingredient in our database. CAS number: Not assigned (monomer intermediate; typically used as copolymer — Acrylates/Ceteth-20 Itaconate Copolymer).

What is the Margin of Safety for Ceteth-20 Itaconate?

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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