抄録
Paper chromatography was carried out on natural coumarin derivatives, umbelliferone, hernianin, daphnetin, citropten, esculetin, fraxetin, umbelliferone glycoside, daphnine, aesculin, and fraxin, using the simple descending method, with water-saturated isoamyl acetate, isoamyl alcohol, phenol, chloroform, and 4:1:2-mixture of isoamyl alcohol, acetic acid, and water, as the developing agents, to determine their Rf values. Applying the present method, components of the tree bark of Aesculus turbinata Bl. were examined and it was pointed out that esculin or esculetin could be present besides fraxin or fraxetin.
