(+)-(2S,4S)-Disila-okoumal - very weak to odorless on the blotter, only faintly ambery-woody Odor Threshold = 6.3 ng/L in air (+/-10.5) = (+)-(2S,4S)-2,4-dimethyl-2-(5,5,8,8-tetramethyl-5,8-disila-5,6,7,8-tetrahydro-2-naphthyl)-1,3-dioxolane Ref: Matthias W. Buettner, Christian Burschka, Konstantin Junold, Philip Kraft, Reinhold Tacke, Disila-Okoumal: A Silicon Analogue of the Ambergris Odorant Okoumal, ChemBioChem, Volume 8, Issue 12, Date: August 13, 2007, Pages: 1447-1454 Okoumal is a registered trademark of Givaudan SA

(-)-(2R,4R)-Disila-okoumal - pronounced, typical ambery odor with woody aspects, stronger than (+)-(2R,4S)-Disila-okoumal, the strongest disila-okoumal enantiomer on the blotter, but on the blotter clearly weaker than (-)-(2R,4R)-Okoumal Odor Threshold = 0.31 ng/L in air (+/-0.14) = (-)-(2R,4R)-2,4-dimethyl-2-(5,5,8,8-tetramethyl-5,8-disila-5,6,7,8-tetrahydro-2-naphthyl)-1,3-dioxolane Ref: Matthias W. Buettner, Christian Burschka, Konstantin Junold, Philip Kraft, Reinhold Tacke, Disila-Okoumal: A Silicon Analogue of the Ambergris Odorant Okoumal, ChemBioChem, Volume 8, Issue 12, Date: August 13, 2007, Pages: 1447-1454 Okoumal is a registered trademark of Givaudan SA

(-)-(2S,4R)-Disila-okoumal - very weak to odorless on the blotter, only slightly ambery-woody, with some faint reminiscence to okoumal Odor Threshold = 6.8 ng/L in air (+/-4.3) = (-)-(2S,4R)-2,4-dimethyl-2-(5,5,8,8-tetramethyl-5,8-disila-5,6,7,8-tetrahydro-2-naphthyl)-1,3-dioxolane Ref: Matthias W. Buettner, Christian Burschka, Konstantin Junold, Philip Kraft, Reinhold Tacke, Disila-Okoumal: A Silicon Analogue of the Ambergris Odorant Okoumal, ChemBioChem, Volume 8, Issue 12, Date: August 13, 2007, Pages: 1447-1454 Okoumal is a registered trademark of Givaudan SA

Ionones, Irones, Damascones & Structurally Related Odorants

Acyclics (Alcohols, Esters, Acids, Aldehydes)

Lactones & Furanones

Sesquiterpenoid Related Odorants