This is a photograph of bio-oil, made of caproic acid and caprylic acid, phase separates out at mildly acidic conditions. (sciencedaily.com)
They include caproic acid (C6), caprylic acid (C8), capric acid (C10) and lauric acid (C12). (alivebynature.com)
Free MCFAs, such as caproic acid, have an unpleasant odor, but MCFA esters, such as caproate, have a pleasant odor and may be used as food flavors. (nutrientsreview.com)