NOMENCLATURE :Common name pyridaben (ATXht98120 BSIATXht0 , draft ATXht98155 E-ISOATXht0 ) IUPAC name 2-tert-butyl-5-(4-tert-butylbenzylthio)-4-chloropyridazin-3(2H)-one Chemical Abstracts name 4-chloro-2-(1,1-dimethylethyl)-5-[[[4-(1,1-dimethylethyl)phenyl]methyl]thio]-3(2H)-pyridazinone CAS RN [96489-71-3] EEC no. 405-700-3 Development codes NC-129; NCI-129 (both Nissan); BAS-300I (BASF)