Melanogenesis-inhibitory activities of isolated compounds 3–8 in B16F10 cell line.

No.	Melanogenesis inhibition activitya						A/C Ratio
	100 μM		30 μM		10 μM		100 μM	30 μM	10 μM
	MCb	CVc	MC	CV	MC	CV
3	26.22 ± 2.97	77.94 ± 3.26	89.29 ± 5.32	91.14 ± 0.39	98.21 ± 2.99	96.17 ± 1.74	0.34	0.98	1.02
4	94.65 ± 1.78	97.42 ± 0.11	94.02 ± 4.07	99.90 ± 1.81	89.85 ± 2.18	99.83 ± 4.32	0.97	0.94	0.90
5	94.47 ± 6.52	98.44 ± 9.71	103.08 ± 3.60	102.40 ± 8.47	100.18 ± 6.05	108.70 ± 6.53	0.96	1.01	0.92
6	72.63 ± 7.92	90.54 ± 5.87	98.11 ± 5.48	105.25 ± 8.42	98.28 ± 5.52	102.82 ± 6.02	0.80	0.93	0.96
7	74.90 ± 7.30	111.70 ± 6.80	81.60 ± 7.90	112.30 ± 1.50	90.90 ± 4.30	100.60 ± 0.70	0.67	0.73	0.90
8	61.36 ± 2.59	94.52 ± 8.06	83.99 ± 6.88	103.08 ± 5.15	96.43 ± 7.85	101.81 ± 3.47	0.65	0.81	0.95
Arbutin	82.50 ± 5.80	107.60 ± 7.80	93.40 ± 6.10	107.30 ± 6.80	98.90 ± 2.10	108.90 ± 0.50	0.77	0.87	0.91

^aEach value represents the mean ± SD (n = 3).

^bMC: Melanin content (%).

^cCV: Cell viability (%).