Chemically Talking, 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 within a ratio of 2:3 therefore the "Sesqui" part within the molecule's title. An AHA that will come from citrus fr