4-[4-(methylsulfonyl)piperazin-1-yl]phenol InChI=1/C11H16N2O3S/c1-17(15,16)13-8-6-12(7-9-13)10-2-4-11(14)5-3-10/h2-5,14H,6-9H2,1H piperazine, 1-(4-hydroxyphenyl)-4-(methylsulfonyl)-