Ligustilide is found in the highest concentration in wild celeries (Apium graveolens).

[4] However, because of the chemical instability of ligustilide, the relevance of these studies to any effects in humans is uncertain.

[5] Ligustilide is a volatile compound, found in the essential oil of various herb roots.

[7] In an other report, ligustilide was not mentioned as a component in hydrodistilled essential oil of Angelica archangelica root from Serbia.

[8] When dried whole root is used, as in traditional Chinese medicine, the pharmacological effect may be ascribed to a range of components, including polysaccharides.