. 2010 Oct 20;15(10):7218–7226. doi: 10.3390/molecules15107218

Table 2.

Antimalarial Activities of Anthraquinones from R. elliptica Korth.

Sample	IC₅₀ (µM)
1	1.10
2	na^†
3	72.46
4	0.63
5	51.28
6	2.10
7	0.34
8	na^†
9	nt^‡
10	na^†
11	nt^‡
Chloroquine diphosphate	6.30*

Each sample was tested in duplicate; The IC₅₀ values were obtained from average values of percent inhibition within a series of concentration; Notes: na^† –no activity; nt^‡ – not tested; * unit in nM.