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(2007/10/02)1-Ethylsulfanyl-4-(4-nitro-phenylazo)-isoquinolin-3-ol
1-Ethylsulfanyl-4-(4-methoxy-phenylazo)-isoquinolin-3-ol
4-(4-Chloro-phenylazo)-1-ethylsulfanyl-isoquinolin-3-ol
1-Ethylsulfanyl-4-p-tolylazo-isoquinolin-3-ol
1-Ethylsulfanyl-4-m-tolylazo-isoquinolin-3-ol