(1,1'-Biphenyl)-4-carboxylic acid, 4'-heptyl-, 4'-cyano(1,1'-biphenyl)-4-yl ester 4'-Cyano(1,1'-biphenyl)-4-yl 4'-heptyl(1,1'-biphenyl)-4-carboxylate 4-Cyano-4'-biphenyl 4-heptylbiphenyl-4'-carboxylate 72928-30-4 EINECS 277-064-3