Methacryloyloxyethyltrimonium Chloride

INCI: USED AS A MONOMER COMPONENT; APPEARS IN COPOLYMER INCI NAMES (E.G., ACRYLAMIDE/METHACRYLOYLOXYETHYLTRIMONIUM CHLORIDE COPOLYMER, CAS 35429-19-7)

CAS Number
5039-78-1
Function
Cationic monomer for synthesis of conditioning/antistatic polymers; quaternary ammonium functionality provides positive charge for hair substantivity
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Allowed - not specifically restricted; copolymers containing this monomer have been reviewed

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Quaternary ammonium compounds can be irritating at high concentrations; as a polymerized component, residual monomer levels should be controlled. The permanent positive charge from the trimethylammonium group drives electrostatic adsorption onto negatively charged hair/skin surfaces, providing conditioning, detangling, and antistatic effects

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Concern Level: Moderate

Frequently Asked Questions

Is Methacryloyloxyethyltrimonium Chloride safe in cosmetics?

Quaternary ammonium compounds can be irritating at high concentrations; as a polymerized component, residual monomer levels should be controlled. The permanent positive charge from the trimethylammonium group drives electrostatic adsorption onto negatively charged hair/skin surfaces, providing conditioning, detangling, and antistatic effects The EU classifies Methacryloyloxyethyltrimonium Chloride as "permitted". Safety rating: MODERATE.

Is Methacryloyloxyethyltrimonium Chloride allowed in the EU?

Methacryloyloxyethyltrimonium Chloride EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Methacryloyloxyethyltrimonium Chloride do in cosmetics?

Methacryloyloxyethyltrimonium Chloride functions as: Cationic monomer for synthesis of conditioning/antistatic polymers; quaternary ammonium functionality provides positive charge for hair substantivity. It is classified as a cosmetic ingredient in our database. CAS number: 5039-78-1.

What is the Margin of Safety for Methacryloyloxyethyltrimonium Chloride?

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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