1. Osthole, oxypeucedanin, heraclenin, and oxypeucedanin hydrate have been isolated from the roots of
Hippomarathrum caspium (DC) Grossh. and identified; the presence of traces of isoimperatorin, imperatorin, and umbelliferone has been established
chromatographically. A substance with mp 149–150° apparently belonging to the sitosterol group has been obtained.
2. Xanthotoxin has been isolated from the leaves and stems; the presence of a small amount of bergaptene and umbelliferone
has been detected chromatographically.
Khimiya Prirodnykh Soedinenii, Vol. 1, No. 5, pp. 356–359, 1965