Figure 2.
Determination of the half inhibition concentration (IC50). (A) The half inhibition concentration (IC50) of cryptotanshinone towards UGT1A7. (B) The half inhibition concentration (IC50) of cryptotanshinone towards UGT1A9. (C) The half inhibition concentration (IC50) of dihydrotanshinone I towards UGT1A9. Every data point represents the mean of two replicates.