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. 2019 Jul 8;13:2169–2178. doi: 10.2147/DDDT.S209324

Figure 4.

Figure 4

The IC50 (µM) values of synthetic compounds against mushroom tyrosinase. L-DOPA was used as substrate and concentrations of synthetic compounds were 10, 30, 60, 100 µM. Absorbance of the reaction was taken at 490 nm. (IC50: 2d>1c>2b>2c>1b>2e>2a>1e>kojic acid>1a>1d).