(1,1'-Biphenyl)-4-carbonitrile, 4'-((2S)-2-methylbutyl)- (S)-4'-(2-Methylbutyl)(1,1'-biphenyl)-4-carbonitrile 4-Cyano-4'-(2-methylbut-1-yl)biphenyl 59137-36-9 63799-11-1 EINECS 264-464-8