Chemically Talking, this molecule is "midway" in between Sorbitan Oleate and Sorbitan Trioleate, which means that it's also an attachment of sorbitan (a dehydrated sorbitol (sugar) molecule) with the unsaturated fatty acid Oleic Acid, but inside of a ratio of two:three for this reason the "Sesqui" element within the molecule's name. When Farmacy s