highly significantp < 0.01
In cells treated with 2,500 or 4,000 μM concentrations of compound 7, significant (p < 0.05) Class 1 (42% for 4,000 μM) and highly significant (p < 0.01) Class 2 (11% and 14% for 2,500 and 4,000 μM, respectively) of damage were observed, with some of the cells displaying Class 3 (12%) DNA damage.