Chemically Talking, this molecule is "midway" between 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 in the ratio of two:three hence the "Sesqui" element in the molecule's identify. What is apparently a real big diffe