Table 1.

Cytotoxic activity of isoflavones isolated from Millettia ferruginea spp. ferruginea in human ovarian cancer cells.

Compound No	Name	IC50 a
		A2780	SKOV3
1	6,7-dimethoxy-3′,4′-methylenedioxy-8- (3,3-dimethylallyl)isoflavone (DMI)	0.45 ± 0.06 μM (0.18 ± 0.02 μg/mL)	> 100 μM (> 39.41 μg/mL)
2	Ferrugone	0.51 ± 0.06 μM (0.21 ± 0.02 μg/mL)	36.78 ± 5.26 μM (15.01 ± 2.15 μg/mL)
3	Prebarbigerone	32.06 ± 8.31 μM (13.16 ± 3.41 μg/mL)	> 100 μM (> 41.05 μg/mL)
-	Cisplatin b	14.14 ± 0.59 μM (4.24 ± 0.18 μg/mL)	36.64 ± 0.96 μM (10.99 ± 0.29 μg/mL)

^a IC₅₀ values are defined as the concentration that results in a 50% decrease in the number of cells compared with that of the control cultures. ^b Cisplatin was used as a positive control.