Polyisobutyl Methacrylate

INCI: POLYISOBUTYL METHACRYLATE

CAS Number
9011-15-8
Function
Film Forming
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status restricted
US Notes Not specifically restricted; CIR has assessed methacrylate ester monomers and polymers โ€” PMMA safety data considered relevant to the class

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

Residual monomer isobutyl methacrylate is a contact sensitizer; ensure polymer specifications include residual monomer limits.

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Concern Level: Moderate

Regulatory Flags

potential-allergen

Frequently Asked Questions

Is Polyisobutyl Methacrylate safe in cosmetics?

Residual monomer isobutyl methacrylate is a contact sensitizer; ensure polymer specifications include residual monomer limits. The EU classifies Polyisobutyl Methacrylate as "permitted". Safety rating: GOOD.

Is Polyisobutyl Methacrylate allowed in the EU?

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

What does Polyisobutyl Methacrylate do in cosmetics?

Polyisobutyl Methacrylate functions as: Film Forming. It is classified as a cosmetic ingredient in our database. CAS number: 9011-15-8.

What is the Margin of Safety for Polyisobutyl Methacrylate?

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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