Is Methylbutenes safe in cosmetics?
Methylbutenes has a safety rating of "MODERATE" in our database. EU status: permitted. US status: permitted.
Moderate
Cosmetic Ingredient
Methylbutenes
INCI: METHYLBUTENES
Methylbutenes (CAS 513-35-9 (2-methyl-2-butene) / mixture of methylbutene isomers) is a cosmetic cosmetic ingredient functioning as Solvent / viscosity controlling. EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database.
Auto-generated CPSR Part A draft with source citations
CAS Number
513-35-9 (2-methyl-2-butene) / mixture of methylbutene isomers
View industrial chemical safety profile →
Function
Solvent / viscosity controlling
Safety Rating
MODERATE
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
Permitted — no specific cosmetic CFR restriction
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Methylbutenes.
Calculate MoS for your specific formulation with the MoS Calculator.
Expert Verdict
Expert safety assessment and concern-level summary for Methylbutenes.
Frequently Asked Questions
Is Methylbutenes allowed in the EU?
Methylbutenes EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Methylbutenes do in cosmetics?
Methylbutenes functions as: Solvent / viscosity controlling. It is classified as a cosmetic ingredient in our database. CAS number: 513-35-9 (2-methyl-2-butene) / mixture of methylbutene isomers.
Compliance Tools
Check Methylbutenes compliance across multiple jurisdictions:
Ingredient Decoder
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82 Allergen Checker
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Substance Compliance
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MoS Calculator
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Heavy Metal Limits
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