Ammonium Ethylene/MA Copolymer

INCI: AMMONIUM ETHYLENE/MA COPOLYMER

CAS Number
9010-89-3 (ethylene/maleic anhydride copolymer, ammonium salt)
Function
Emulsion stabilising, surfactant – cleansing, surfactant – emulsifying
Safety Rating
GOOD

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes Permitted — CIR reviewed PVM/MA copolymers and related salts/esters; concluded safe as used when formulated to be non-irritating

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

Must ensure residual monomer (maleic anhydride) levels are controlled, as free maleic anhydride is a skin/respiratory irritant; finished polymer form is safe

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Concern Level: Moderate

Frequently Asked Questions

Is Ammonium Ethylene/MA Copolymer safe in cosmetics?

Must ensure residual monomer (maleic anhydride) levels are controlled, as free maleic anhydride is a skin/respiratory irritant; finished polymer form is safe The EU classifies Ammonium Ethylene/MA Copolymer as "permitted". Safety rating: GOOD.

Is Ammonium Ethylene/MA Copolymer allowed in the EU?

Ammonium Ethylene/MA Copolymer EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Ammonium Ethylene/MA Copolymer do in cosmetics?

Ammonium Ethylene/MA Copolymer functions as: Emulsion stabilising, surfactant – cleansing, surfactant – emulsifying. It is classified as a cosmetic ingredient in our database. CAS number: 9010-89-3 (ethylene/maleic anhydride copolymer, ammonium salt).

What is the Margin of Safety for Ammonium Ethylene/MA Copolymer?

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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