The potency of erythrophleum alkaloids**
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Chen, K.K. ;Hargreaves, Chester C. ;Winchester, William T.
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Article
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1938
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Elsevier
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In 1875 Gallois and Hardy (l), (2) first succeeded in isolating the alkaloid erythrophleine from the African sassy bark (Erythrophleum guineense, family leguminosere). For fully sixty years erythrophleine remained the only alkaloid known to have a digitalis-like action upon the heart, although scien