[1.1']Azonaphthalinyl-(4)-amin, Naphthalin-(1 azo 4)-naphthylamin-(1), 1-Naphthalenamine, 4-(1-naphthalenylazo)-, 4-Amino-1,1'-azonaphthalene, 4-(1-naphthalenylazo)-1-naphthalenamine, 4-Amino-(1.1'-azonaphthalin), EINECS 220-611-8, 1-Naphthalenamine,4-(1-naphthalenylazo), 4-[1]naphthylazo-[1]naphthylamine