Article Title

Studies on Tannins of the Bark of Macaranga tanarius (L.)Muell. Et Arg


Jer-Huei Lin


Chemical examination of the bark of Macaranga tanarius (L.) Muell. et Arg. (Euphorbiaceae) has led to the isolation of 10 known tannins(l-l0). These tannins are corilagin (1), mallotinic acid(2), geraniin(3), marcarinin A (4), putranjivain B(5), putranjivain A(6), mallotunin(7), mallophilinin (8), repandusinic acid A(9) and phyllanthusiin C(10). These structures were identified on the basis of their physical properties and spectroscopic evidences.

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