PEG/PPG-35/9 Butyl Ether Dimethicone

INCI: PEG/PPG-35/9 BUTYL ETHER DIMETHICONE

CAS Number
Not individually assigned; likely shares generic CAS 68937-54-2
Function
Emulsifier, skin/hair conditioning agent (silicone-polyether hybrid)
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Not restricted by FDA. Falls within scope of CIR polyoxyalkylene siloxane copolymers review โ€” 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)
adequate
Dermal Absorption
negligible
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

No individual toxicological dataset; CPSR assessor must document read-across justification. D4/D5 and 1,4-dioxane impurity controls mandatory. Butyl ether moiety adds minor hydrophobicity; verify supplier purity specification.

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Concern Level: Low

Regulatory Flags

peg-ingredient

Frequently Asked Questions

Is PEG/PPG-35/9 Butyl Ether Dimethicone safe in cosmetics?

No individual toxicological dataset; CPSR assessor must document read-across justification. D4/D5 and 1,4-dioxane impurity controls mandatory. Butyl ether moiety adds minor hydrophobicity; verify supplier purity specification. The EU classifies PEG/PPG-35/9 Butyl Ether Dimethicone as "permitted". Safety rating: GOOD.

Is PEG/PPG-35/9 Butyl Ether Dimethicone allowed in the EU?

PEG/PPG-35/9 Butyl Ether Dimethicone EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does PEG/PPG-35/9 Butyl Ether Dimethicone do in cosmetics?

PEG/PPG-35/9 Butyl Ether Dimethicone functions as: Emulsifier, skin/hair conditioning agent (silicone-polyether hybrid). It is classified as a cosmetic ingredient in our database. CAS number: Not individually assigned; likely shares generic CAS 68937-54-2.

What is the Margin of Safety for PEG/PPG-35/9 Butyl Ether Dimethicone?

adequate 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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