Organic IntermediateChina Npd / N, N′-Bis- (1-naphthalenyl) -N, N′-Bis-Phenyl- (1, 1′-biphenyl) -4, 4′-Diamine CAS No.: 123847-85-8, Find details about China Npd, Npd 123847-85-8 from Npd / N, N′-Bis- (1-naphthalenyl) -N, N′-Bis-Phenyl- (1, 1′-biphenyl) -4, 4′-Diamine CAS No.: 123847-85-8