Figure 1.
Chemical structures of the major bioactive components in Danshen. (1) Danshensu (DSS); (2) protocatechuic acid (PA); (3) protocatechualdehyde (PD); (4) caffeic acid (CA); (5) rosmarinic acid (RA); (6) lithospermic acid (LA); (7) salvianolic acid B (SaB); (8) salvianolic acid A (SaA); (9) salvianolic acid C (SaC); (10) dihydrotanshinone I(dTNI); (11) cryptotanshinone (cTN); (12) tanshinone I (TNI); (13) tanshinone IIa (TNIIa).