(R)-(+)-(E)-alpha-damascone - odor character was reminiscent of rose petals, with apple & fruiter notes than (S)-(-)-(E)-alpha-damascone . When used as a flavoring ingredient, (R)-(+)-alpha-damascone possesses also a somehat woody, camphory, dirty and musty taste. Odor Threshold = 100 ppb Ref: Fehr, et. al., United States Patent 4,990,496, February 5, 1991; Mans H. Boelens, Harrie Boelens & Leo J. van Gemert, Perfumer & Flavorist, Vol. 38, No. 6, 1-15, 1993

(S)-(-)-(E)-alpha-damascone - floral, reminiscent of rose petals and characterized by a more pronounced and fresher floral note possessing moreover a green and slightly winey notes without presenting the "cork" tone and the typical green apple note of the racemic mixture or of the (R)-(+)-enantiomer. When used as a flavoring ingredient, (S)-(-)-alpha-damascone develops a floral note. Moreover, it is reminiscent of tea, especially with regard to its herbal character. Odor Threshold = 1.5 ppb Ref: Fehr, et. al., United States Patent 4,990,496, February 5, 1991; Mans H. Boelens, Harrie Boelens & Leo J. van Gemert, Perfumer & Flavorist, Vol. 38, No. 6, 1-15, 1993

Ionones, Irones, Damascones & Structurally Related Odorants

Acyclics (Alcohols, Esters, Acids, Aldehydes)

Lactones

Sesquiterpenoid Related Odorants