141-13-9

2,6,10-Trimethyl-9-undecenal is a colorless to slightly yellow liquid with an intense aldehyde, waxy, slightly floral odor. It is synthesized from a hydrogenated pseudoionone (primarily the tetrahydro compound) and an alkyl chloroacetate by means of a glycidic ester condensation; this is followed by hydrolysis and decarboxylation.
2,6,10-Trimethyl-9-undecenal is a richly fragrant substance that is used in flower compositions to obtain an aldehydic note.

Clear, yellow liquid; strong, pungent, ozone-like odor. Combustible.

Notclassified

Adoxal (Givaudan), Farenal® (Symrise).

Adoxal is prepared from Pseudo-ionone via Darzen’s reaction (Glycidate-intermediate).