Chemically speaking, this molecule is "midway" amongst 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:3 therefore the "Sesqui" aspect during the molecule's title. Turmeric is the yellow spice you a