ID 1.14.13.19 DE taxifolin 8-monooxygenase. CA (1) (2R,3R)-dihydroquercetin + NADH + O2 + H(+) = (2R,3R)-2,3- CA dihydrogossypetin + NAD(+) + H2O. CA (2) (2R,3R)-dihydroquercetin + NADPH + O2 + H(+) = (2R,3R)-2,3- CA dihydrogossypetin + NADP(+) + H2O. CC -!- Converts a flavanol into a flavanone. CC -!- Also acts on fustin, but not on catechin, quercetin or CC mollisacacidin. //