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 a ratio of 2:3 therefore the "Sesqui" element from the molecule's title. Turmeric is definitely the yel