Chemically Talking, this molecule is "midway" concerning Sorbitan Oleate and Sorbitan Trioleate, indicating that it is also an attachment of sorbitan (a dehydrated sorbitol (sugar) molecule) with the unsaturated fatty acid Oleic Acid, but within a ratio of two:3 that's why the "Sesqui" portion inside the molecule's name. I also like that this is i