Chemically speaking, this molecule is "halfway" among Sorbitan Oleate and Sorbitan Trioleate, this means that it's also an attachment of sorbitan (a dehydrated sorbitol (sugar) molecule) with the unsaturated fatty acid Oleic Acid, but in a very ratio of 2:three hence the "Sesqui" component from the molecule's title. Besides aquiring a good basic s