Biphenyl-4-yl-(9,9-dimethyl-9H-fluoren-2-yl)-(9,9‘-spirobifluoren-4-yl)-amine

Biphenyl-4-yl-(9,9-dimethyl-9H-fluoren-2-yl)-(9,9‘-spirobifluoren-4-yl)-amine · CAS 1450933-88-6