methyl,nitro,trifluoromethyl,phenylsulfonyl,piperazine
Piperazine
900800-91-11-Piperazinecarboxylic acid, 4-[3-[(ethoxycarbonyl)amino]phenyl]-,1,1-dimethylethyl ester
900800-89-71-Piperazinecarboxylic acid, 4-[3-[(methylsulfonyl)amino]phenyl]-,1,1-dimethylethyl ester