Chemically Talking, this molecule is "midway" among Sorbitan Oleate and Sorbitan Trioleate, that means that it's also an attachment of sorbitan (a dehydrated sorbitol (sugar) molecule) with the unsaturated fatty acid Oleic Acid, but inside a ratio of two:3 for this reason the "Sesqui" portion within the molecule's title. The emollient plant oil co