Table 2. Cell growth inhibitory activity of 9NC and 9NC-LP in human cancer and normal cells.

Incubation time	IC50(µmol/L)a
	HepG2		Bel-7402		Hep 3B		L02
	9NC	9NC-LP	9NC	9NC-LP	9NC	9NC-LP	9NC	9NC-LP
10 h	29.39±1.26	37.56±1.78	34.05±0.95	46.8±1.39	346.36±14.96	367.81±20.33	39.94±0.93	51.43±2.45
24 h	16.33±0.72	18.81±0.89	17.46±1.03	18.00±0.94	275.15±11.58	290.41±18.71	17.87±0.63	23.90±0.36
48 h	6.28±0.12	1.53±0.08	6.83±0.29	1.61±0.04	17.19±1.34	34.39±1.52	29.14±0.52	14.52±0.48
72 h	0.17±0.01	0.02±0.00	0.41±0.01	0.29±0.01	7.28±0.43	18.56±0.52	12.58±0.08	2.66±0.05

^aIC50, the concentration that inhibits cell growth by 50%.