Prenyl (2S)-2-methylpentanoate - Odor - reminiscent of black currant = 3-methylbut-2-en-1-yl (2S)-2-methylpentanoate Ref: Rettinger, Klaus, Christian Burschka, Peter Scheeben, Heike Fuchs, and Armin Mosandl. "Chiral 2-alkylbranched acids, esters and alcohols. Preparation and stereospecific flavour evaluation." Tetrahedron: Asymmetry 2, no. 10 (1991)

Prenyl (2R)-2-methylpentanoate - Odor - musty, sweety, fruity, weak chemical 3-methylbut-2-en-1-yl (2R)-2-methylpentanoate Ref: Rettinger, Klaus, Christian Burschka, Peter Scheeben, Heike Fuchs, and Armin Mosandl. "Chiral 2-alkylbranched acids, esters and alcohols. Preparation and stereospecific flavour evaluation." Tetrahedron: Asymmetry 2, no. 10 (1991)

Ionones, Irones, Damascones & Structurally Related Odorants

Acyclics (Alcohols, Esters, Acids, Aldehydes)

Lactones

Sesquiterpenoid Related Odorants