Angelica seeds have a similar chemical composition to the roots, including α-pinene, β-pinene, camphene, myrcene, β-phellandrene, limonene, caryophyllene, borneol, carvone and others.
Both the seeds and roots contain coumarins and furocoumarins. Among these are 2′-angeloyl-3′-isovaleryl vaginate, archangelicin, oxypeucedanin hydrate, bergapten, byakangelicin angelate, imperatorin, isoimperatorin, isopimpinellin, 8-[2-(3-methylbutroxy)-3-hydroxy-3-methylbutoxy]psoralen, osthol, ostruthol, oxypeucedanin, phellopterin, psoralen and xanthotoxin, can be isolated from a chloroform extract of the roots of A. archangelica as well as several heraclenol derivatives. The water root extract of A. archangelica subsp. litoralis contains adenosine, coniferin, the two dihydrofurocoumarin glycosides apterin and 1′-O-β-d-glycopyranosyl-(S)-marmesin (marmesinin), 1′-O-β-d-glucopyranosyl-(2S, 3R)-3-hydroxymarmesin and 2′-β-d-glucopyranosyloxymarmesin.
Wikipedia