Chirality & Odour Perception
John C. Leffingwell, Ph.D.

The Dihydrocitronellals

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Photo by permission of M. Roudintska - Art & Parfum

(R)-(+)-dihydrocitronellal - powerful rosy odor with irritative green note

Odor Threshold = 5 ppb

Ref: Takeshi Yamamoto, Akemi Shimada, Tatsuya Ohmoto, Hiroyuki Matsuda, Miharu Ogura and Tsuneyoshi Kanisawa, Flavour and Fragrance Journal, Volume 19, Issue 2, Date: March/April 2004, Pages: 121-133; T. Yamamoto, H. Matsuda, T. Ohmoto, A. Shimada & T. Sato, Proc. 12th Int. Congress of Flavours, Fragrances & Essential oils, Vienna, Austria, Oct. 4-8, 1992, pp.442-455

(S)-(-)-dihydrocitronellal - floral odor with sweet rosy note

Odor Threshold = 5 ppb

Ref: Takeshi Yamamoto, Akemi Shimada, Tatsuya Ohmoto, Hiroyuki Matsuda, Miharu Ogura and Tsuneyoshi Kanisawa, Flavour and Fragrance Journal, Volume 19, Issue 2, Date: March/April 2004, Pages: 121-133; T. Yamamoto, H. Matsuda, T. Ohmoto, A. Shimada & T. Sato, Proc. 12th Int. Congress of Flavours, Fragrances & Essential oils, Vienna, Austria, Oct. 4-8, 1992, pp.442-455

Cyclic Terpenoid Odorants

Bicyclic Terpenoid Odorants

Acyclic Terpenoid Odorants

Ionones, Irones, Damascones & Structurally Related Odorants

Acyclics (Alcohols, Esters, Acids, Aldehydes)

Lactones

Sesquiterpenoid Related Odorants

Steroid Urine Type Odorants

Sandalwood Type Odorants

Musk Odorants

Miscellaneous

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