Simultaneous Determination of Rutin, Luteolin, Quercetin, and Betulinic Acid in the Extract of Disporopsis pernyi (Hua) Diels by UPLC

Figure 1

Chemical structures of compounds in Disporopsis pernyi (Hua) Diels. (1) Rutin, (2) luteolin, (3) quercetin, and (4) betulinic acid.