Epetraborole (GSK2251052) hydrochloride is a novel leucyl-tRNA synthetase ( LeuRS ) inhibitor ( IC 50 =0.31 μM), thereby inhibiting protein synthesis. Epetraborole hydrochloride can be used in multidrug-resistant gram-negative pathogens infection research In Vitro Epetraborole (0-32 μg/mL) shows anti-bacterial activity against key gram-negative aerobic and anaerobic pathogens and gram-positive anaerobes. MCE has not independently confirmed the accuracy of these methods. They are for reference only. Cell Viability AssayCell Line: Anaerobes isolates Concentration: 0-32 μg/mL Incubation Time: Result: Showed MIC 50 /MIC 90 for all anaerobes isolates tested of 2 and 4 μg/mL, respectively. Form:Solid IC50& Target:IC 50 : 0.31 μM (LeuRS)