methyl,piperazinyl,imino,rifamycin,oxide,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
545364-71-4Methanone, [4-(4-chlorophenyl)-1-piperazinyl][3-(2,6-dichlorophenyl)-5-methyl-4-isoxazolyl]-
112984-60-86-Fluoro-1-methyl-4-oxo-7-(1-piperazinyl)-4H-[1,3]thiazeto[3,2-a]quinoline-3-carboxylic acid
90503-69-82H-1,4-Benzodiazepin-2-one,7-chloro-1,3-dihydro-5-phenyl-1-[3-(4-phenyl-1-piperazinyl)propyl]-