Dehydrocholic acid is a synthetic bile acid, manufactured by the oxidation of cholic acid.

1-Palmitoyl-2-Arachidonoyl-sn-glycero-3-PC (1-Palmitoyl-2-Arachidonoyl-sn-glycero-3-Phosphocholine) is a phospholipid found in biological membranes that contains palmitic acid (16:0) and arachidonic acid (20:0) in its structure. (16:0) and arachidonic acid (20:4) in its structure.

Aristola-1(10),8-dien-2-one is a natural product. Aristola-1(10),8-dien-2-one can be used as a reference standard.