Fatty acid ester
Dietary fats
are chemically triglycerides.
Esters of fatty acids are colorless, although degraded samples are sometime appear to be yellow or even brown. The triglycerides are powders, flakes, coarse powders, or granular or waxy lumps, oils or liquids. They are almost odorless.
isopropanol
.
Fatty acid ethyl esters are biomarkers for the consumption of ethanol (alcoholic beverages).[1][2][3]