Pyridazine
                            Order
                            26653-91-8
                            
                                1H-Naphth[2',1':4,5]indeno[2,1-c]pyridazine,androsta-5,16-dieno[16,17-c]pyridazine-1',2'-dicarboxylic acid deriv.
                            
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                    
  
  
  
    
      Order
    
    254897-50-2
    
      4,4'-(1,4-Phenylenedi-2,1-Ethenedily)Bis[N-(2-Ethyl-6-Methylphenyl)-N-Phenyl-Benzenamine