1,2,4-Trithiolane, 3,5-diethyl-

(+/-)-cis- and trans-3,5-Diethyl-1,2,4-trithiolane has a characteristic sulfur odor.

Reportedly present in garlic (Allium sativum L.).

Reportedly produced in a patented process from filamentous fungi by heating them in water at a temperature sufficient to reduce their nucleic acid content. The resulting aqueous solution is concentrated to separate the solids

For the cis isomer the aroma threshold in water is 0.000032 ppm and for the trans isomer, 0.000015 ppm (water)