methanesulfonamide,piperazinyl,ethyl,1-piperazin,1-piperazinyl
1-Piperazin
63422-71-9(D-)-alpha-[[(4-Ethyl-2,3-dioxo-1-piperazinyl) carbonyl]amino]-2-(4-hydroxyphenyl) acetic acid
112984-60-86-Fluoro-1-methyl-4-oxo-7-(1-piperazinyl)-4H-[1,3]thiazeto[3,2-a]quinoline-3-carboxylic acid
157845-11-93-Quinolinecarboxylic acid,7-[4-(3-chlorophenyl)-1-piperazinyl]-6-fluoro-1,4-dihydro-4-oxo-1-[3-(2H-1,2,3-triazol-2-ylmethyl)phenyl]-