3,4,4',7-Tetrahydroxyflavan
https://www.immunecentral.com/shop/cell25sk3943-344-7-tetrahydroxyflavan-217320
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3,4,4',7-Tetrahydroxyflavan is a Flavonoids product that can be isolated from the barks of Toxicodendron verniciflua[1].
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