An unsaturated aldehyde with eleven carbon atoms, used as a fragrance ingredient.
What it is
Undecylenal is undec-10-enal, an aldehyde with an eleven-carbon chain and a double bond at the end of the chain. It belongs to the fatty aldehydes used in perfumery. CosIng lists it as a fragrance and perfuming ingredient.
Where it is used
Found in a small number of scented products.
Limits of interpretation
The INCI list shows which ingredients are present, not how much of each. Above 1%, ingredients are listed in descending order of weight; below 1% the order is free.
Functions
EU regulation
This ingredient is not listed in the annexes of Regulation (EC) No 1223/2009 in the CosIng data.

