Chemically speaking, this molecule is "midway" among Sorbitan Oleate and Sorbitan Trioleate, meaning that it is also an attachment of sorbitan (a dehydrated sorbitol (sugar) molecule) with the unsaturated fatty acid Oleic Acid, but inside of a ratio of two:3 consequently the "Sesqui" component from the molecule's identify. It is also a potent anti