Table 1.

The structure of six active compounds and the half maximal effective concentration (EC₅₀). values of four compounds.

Odorants	Structure	EC50 (M)
(R)-(+)-Limonene		-
(S)-(−)-Limonene		-
(E)-2-Hexenal		3.71 × 10−5
(E)-3-Hexenol		2.53 × 10−5
1-Heptanol		1.38 × 10−5
(1R)-(−)-Myrtenol		7.44 × 10−5