trans-Non-2-enal

INCI: TRANS-NON-2-ENAL

CAS Number
18829-56-6
Function
Perfuming (fragrance); green/fatty/cucumber aldehyde note
Safety Rating
MODERATE

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes Not specifically restricted; FEMA GRAS for flavor use

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

α,β-Unsaturated aldehyde = structural alert for skin sensitization and genotoxicity (Cramer Class III). Must be used within IFRA-specified limits. Potential for autoxidation increasing sensitization risk upon storage

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Concern Level: High

Regulatory Flags

potential-allergen fragrance-component ifra_fragrance

Frequently Asked Questions

Is trans-Non-2-enal safe in cosmetics?

α,β-Unsaturated aldehyde = structural alert for skin sensitization and genotoxicity (Cramer Class III). Must be used within IFRA-specified limits. Potential for autoxidation increasing sensitization risk upon storage The EU classifies trans-Non-2-enal as "permitted". Safety rating: MODERATE.

Is trans-Non-2-enal allowed in the EU?

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

What does trans-Non-2-enal do in cosmetics?

trans-Non-2-enal functions as: Perfuming (fragrance); green/fatty/cucumber aldehyde note. It is classified as a cosmetic ingredient in our database. CAS number: 18829-56-6.

What is the Margin of Safety for trans-Non-2-enal?

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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