Allyl methyl disulfide, identified by CAS number 2179-58-0, is a volatile organosulfur compound naturally occurring in various Allium species, most notably garlic and onions. It is characterized by a distinct, pungent, and alliaceous aroma that is highly recognizable even at low concentrations. Chemically, it consists of an allyl group and a methyl group linked by a disulfide bridge, contributing to its reactive profile and characteristic sulfurous properties.
In industrial and research settings, this compound is valued for its specific chemical reactivity and sensory profile. It typically appears as a colorless to pale yellow liquid and is handled with care due to its strong odor and potential for oxidation. As a key component of essential oils derived from garlic, it serves as an important reference standard in analytical chemistry and a versatile intermediate in organic synthesis.