193902-98-6

B90114 1-Boc-4-(3-amino-4-nitrophenyl)piperazine tert-Butyl 4-(3-amino-4-nitrophenyl)piperazine-1-carboxylate 4-(3-amino-4-nitrophenyl)piperazine-1-carboxylic acid tert-butyl ester 1-Piperazinecarboxylic acid, 4-(3-amino-4-nitrophenyl)-, 1,1-dimethylethyl ester