What is "syringin"

Syringin \Sy*rin"gin\, n. (Chem.) A glucoside found in the bark of the lilac ( Syringa) and extracted as a white crystalline substance; -- formerly called also lilacin.

n. (context organic compound English) A glucoside found in the bark of the lilac (''Syringa'') and extracted as a white crystalline substance.

Syringin is a natural chemical compound first isolated from the bark of lilac (Syringa vulgaris) by Meillet in 1841. It has since been found to be distributed widely throughout many types of plants. It is also called eleutheroside B, and is found in Eleutherococcus senticosus (Siberian ginseng). It is also found in dandelion coffee.

Chemically, it is the glucoside of sinapyl alcohol.