2-Decenal

INCI: 2-DECENAL

CAS Number
3913-71-1
Function
Fragrance
Safety Rating
MODERATE

Regulatory Status

🇪🇺 EU Status prohibited
🇺🇸 US Status permitted
US Notes Permitted — no FDA restriction

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Key concern: Michael acceptor (α,β-unsaturated aldehyde) causing direct protein reactivity and sensitization risk. Not genotoxic; not PBT. Used as read-across sensitization source for 2-tridecenal assessments.

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Concern Level: High

Regulatory Flags

potential-allergen fragrance-component ifra_fragrance fda_food_additive jecfa_safe

Frequently Asked Questions

Is 2-Decenal safe in cosmetics?

Key concern: Michael acceptor (α,β-unsaturated aldehyde) causing direct protein reactivity and sensitization risk. Not genotoxic; not PBT. Used as read-across sensitization source for 2-tridecenal assessments. The EU classifies 2-Decenal as "prohibited". Safety rating: MODERATE.

Is 2-Decenal allowed in the EU?

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

What does 2-Decenal do in cosmetics?

2-Decenal functions as: Fragrance. It is classified as a cosmetic ingredient in our database. CAS number: 3913-71-1.

What is the Margin of Safety for 2-Decenal?

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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