These are manufactured from cholic acid derived from bovine bile.

Kynurenic acid, derived from kynurenine by transamination, can antagonize the effect of quinolinate.

These are first hydrogenated to give a plant stanol which is then esterified with a mixture of fatty acids also derived from plants.

Numerous sulfonic acids derived from 2-naphthylamine are known.

Methacrylic acid, derived from acrylic acid, was formulated in 1865.

Undecylenic acid is an organic unsaturated fatty acid derived from castor oil.

An acid derived from the oil is produced at an unlikely location on the Outer Hebrides.

Selenenic acids derived from selenoenzymes are thought to be responsible for the antioxidant activity of these enzymes.

Selenenic acids derived from selenocysteine are involved in cell-signaling and certain enzymatic processes.

These are manufactured from cholic acid derived from bovine bile, but it is said that the effect may not be the same.