1e-9
1e-8
1e-7
1e-6
1e-5
1e-4
0
0.2
0.4
0.6
0.8
1
50% viability
concentration (M)
viability (fraction of untreated)
Dose-response: a dilution series is only evenly spaced in log
compound A, EC50 = 30 nM
compound B, EC50 = 600 nM
compound C, EC50 > top dose