1-(4-Biphenylyl)-4,4,4-trifluoro-3-trifluoromethyl-2-buten-1-one 35444-06-5 4'-Phenyl-4,4,4-trifluoro-3-trifluoromethylcrotonophenone BRN 2300959 CROTONOPHENONE, 4'-PHENYL-4,4,4-TRIFLUORO-3-(TRIFLUOROMETHYL)- NSC 160255