2α-Hydroxy-3β-[[(E)-3-(4-hydroxyphenyl)-1-oxo-2-propenyl]oxy]urs-12-en-28-oic acid;3β-[[(E)-3-(4-Hydroxyphenyl)propenoyl]oxy]-2α-hydroxyurs-12-ene-28-oic acid;Jacoumaric acid
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