Thiols And Sulfur Compounds

Thiols and sulfur compounds represent a distinctive class of volatile molecules found in cannabis that contribute aromas often described as onion, garlic, skunk, or rubber-like. These compounds—including dimethyl disulfide, dimethyl trisulfide, and various mercaptans—are produced through plant metabolism and are more commonly expressed in certain lineages and cultivar types. Lineage records frequently report thiol-dominant profiles in strains descended from Skunk and Diesel-family parents. Breeders studying sulfur compound expression have documented both genetic and environmental factors influencing their production, with some cultivars showing consistent thiol signatures across generations. Understanding thiol chemistry is relevant for strain selection, storage stability, and flavor profiling in breeding programs.

Breeders working in Diesel and Skunk-derived lines often select for or against thiol expression depending on target aroma profiles. Stability of sulfur compound production across generations helps inform parent selection and backcrossing decisions.