Allyl propyl disulfide
Encyclopedia
Allyl propyl disulfide is an organic compound
Chemical compound
A chemical compound is a pure chemical substance consisting of two or more different chemical elements that can be separated into simpler substances by chemical reactions. Chemical compounds have a unique and defined chemical structure; they consist of a fixed ratio of atoms that are held together...

 with the chemical formula
Chemical formula
A chemical formula or molecular formula is a way of expressing information about the atoms that constitute a particular chemical compound....

 C6H12S2. It is a pale-yellow liquid with a strong odor, it is a main ingredient in onion oil and used as food additives and flavors.
This substance is present in garlic, onion, etc., and is very easily evaporated. When onion or garlic is sliced, the substance evaporates and causes eyes to irritate. When garlic or onion is cooked, it also evaporates, ridding them of the spicy taste, and leaving sweet taste in them.
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