SmCYP71D373 of Salvia miltiorrhiza catalyzes the methyl oxidation reaction of tanshinone IIA-19 position
Simultaneous determination of tanshinone I, dihydrotanshinone I, tanshinone IIA and cryptotanshinone in rat plasma by liquid chromatography–tandem mass spectrometry: application to a pharmacokinetic study of a standardized fraction of Salvia miltiorrhiza, PF2401‐SF