umbelliferone + dimethylallyl diphosphate <=> osthenol + diphosphate
umbelliferone + dimethylallyl diphosphate <=> osthenol + diphosphate
umbelliferone + dimethylallyl diphosphate <=> osthenol + diphosphate
umbelliferone + dimethylallyl diphosphate <=> osthenol + diphosphate