Dimethyl Decadienal

INCI: DIMETHYL DECADIENAL

CAS Number
71077-31-1 (4,8-dimethyl-4,9-decadienal, "Floral Super") or 762-26-5 (5,9-dimethyl-4,8-decadienal, "Geranyl Acetaldehyde") — *confirm isomer identity*
Function
Fragrance ingredient
Safety Rating
GOOD

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes Permitted — no CFR prohibition; RIFM assessed

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

α,β-Unsaturated aldehyde with reactive electrophile properties; IFRA use level limits apply; environmental PEC/PNEC reviewed

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Concern Level: Moderate

Regulatory Flags

fragrance-component

Frequently Asked Questions

Is Dimethyl Decadienal safe in cosmetics?

α,β-Unsaturated aldehyde with reactive electrophile properties; IFRA use level limits apply; environmental PEC/PNEC reviewed The EU classifies Dimethyl Decadienal as "permitted". Safety rating: GOOD.

Is Dimethyl Decadienal allowed in the EU?

Dimethyl Decadienal EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Dimethyl Decadienal do in cosmetics?

Dimethyl Decadienal functions as: Fragrance ingredient. It is classified as a cosmetic ingredient in our database. CAS number: 71077-31-1 (4,8-dimethyl-4,9-decadienal, "Floral Super") or 762-26-5 (5,9-dimethyl-4,8-decadienal, "Geranyl Acetaldehyde") — *confirm isomer identity*.

What is the Margin of Safety for Dimethyl Decadienal?

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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