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Remarks
Lithospermic acid B, also known as salvianolic acid is isolated and purified from the crude extract of Salvia miltiorrhiza. Antioxidant activities Lithospermic acid B were also evaluated and the ABTS results showed that Lithospermic acid B exhibited high total antioxidant activities, its EC50 values were 1.43 0.01 .mu.g/mL.