Fig. 12.

Cell viability (% control) of Neuro2A cells upon incubation with: A1–A3: (4-(phenyldiazenyl)phenol) at 2, 5 and 10 μM concentrations, respectively; B1–B3: (4-(phenyldiazenyl)quinolin-8-ol) at 2, 5 and 10 μM concentrations, respectively; C1–C3: HL1 at 2, 5 and 10 μM concentrations, respectively; D1–D3: (4-(phenyldiazenyl) benzene-1,3-diol) at 2, 5 and 10 μM concentrations, respectively; and E1–E3: HL2 at 2, 5 and 10 μM concentrations, respectively.