(S)-(-)-4-pentylbutan-4-olide - fatty, moldy, weak coconut, less intense than (R)-isomer Also known as (S)-(-)-gamma-nonalactone Ref: A. Mosandl and C. Gunther, J. Agric. Food Chem., 37, 413-416 (1989); Mans H. Boelens, Harrie Boelens & Leo J. van Gemert, Perfumer & Flavorist, Vol. 18, No. 6, 1-15, 1993

(R)-(+)-4-pentylbutan-4-olide - strong, sweet, soft coconut, fatty-milky aspect Also known as (R)-(+)-gamma-nonalactone Ref: A. Mosandl and C. Gunther, J. Agric. Food Chem., 37, 413-416 (1989); Mans H. Boelens, Harrie Boelens & Leo J. van Gemert, Perfumer & Flavorist, Vol. 18, No. 6, 1-15, 1993

Ionones, Irones, Damascones & Structurally Related Odorants

Acyclics (Alcohols, Esters, Acids, Aldehydes)

Lactones

Sesquiterpenoid Related Odorants