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[11] as well as several heraclenol derivatives.[12] 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.[13]