94994-62-4 
 
N-(1,1’-biphenyl-4-yl)-9,9-dimethyl-9H-fluoren-2-amine 
 
C45H34N2 
[1]Patent:KR2015/31892,2015,A.Locationinpatent:Paragraph0293-0295
1028647-93-9 
 
N-(1,1′-biphenyl-4-yl)-9,9′-dimethyl-9H-fluoren-3-amine 
 
C51H38N2 
[1]Patent:KR2015/31892,2015,A.Locationinpatent:Paragraph0302-0304
N-(1,1’-biphenyl-4-yl)-9,9-dimethyl-9H-fluoren-2-amine 
 
202831-65-0 
 
C51H40N2 
[1]Patent:KR2015/31892,2015,A.Locationinpatent:Paragraph0386-0388
212385-73-4 
 
N-(1,1′-biphenyl-4-yl)-9,9′-dimethyl-9H-fluoren-3-amine 
 
C51H38N2 
[1]CurrentPatentAssignee:DUKSANNEOLUXCO.,LTD.-KR2015/31892,2015,ALocationinpatent:Paragraph0337-0339