2-Methylbutyraldehyde

INCI: 2-METHYLBUTYRALDEHYDE

CAS Number
96-17-3
Function
Fragrance ingredient
Safety Rating
MODERATE

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes Permitted — FEMA GRAS; no FDA cosmetic-specific restriction

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

Safety Data

Margin of Safety (MoS)
adequate
Dermal Absorption
moderate
Sensitization
moderate

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Aldehyde reactivity presents potential skin sensitization via haptenation mechanism with irritant effects at higher concentrations; use levels should be carefully controlled per IFRA guidelines.

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Concern Level: Moderate

Regulatory Flags

potential-allergen fragrance-component ifra_fragrance fda_food_additive jecfa_safe

Frequently Asked Questions

Is 2-Methylbutyraldehyde safe in cosmetics?

Aldehyde reactivity presents potential skin sensitization via haptenation mechanism with irritant effects at higher concentrations; use levels should be carefully controlled per IFRA guidelines. The EU classifies 2-Methylbutyraldehyde as "permitted". Safety rating: MODERATE.

Is 2-Methylbutyraldehyde allowed in the EU?

2-Methylbutyraldehyde EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does 2-Methylbutyraldehyde do in cosmetics?

2-Methylbutyraldehyde functions as: Fragrance ingredient. It is classified as a cosmetic ingredient in our database. CAS number: 96-17-3.

What is the Margin of Safety for 2-Methylbutyraldehyde?

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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