PU 23;N-((4-(N-Benzylsulfamoyl)phenyl)carbamothioyl)benzamide;N-[({4-[(benzylamino)sulfonyl]phenyl}amino)carbonothioyl]benzamide;Benzamide, N-[[[4-[[(phenylmethyl)amino]sulfonyl]phenyl]amino]thioxomethyl]-;MRP4,PU23,resistance,PU-23,Inhibitor,inhibit,protein,PU 23,6-Mercaptopurine,multidrug