Chemically Talking, this molecule is "halfway" between Sorbitan Oleate and Sorbitan Trioleate, this means that it is also an attachment of sorbitan (a dehydrated sorbitol (sugar) molecule) with the unsaturated fatty acid Oleic Acid, but inside a ratio of 2:three that's why the "Sesqui" portion while in the molecule's identify. Not merely a simple