10434-47-6 2(5H)-Thiophenone, 3-acetyl-4-hydroxy-5-(2,3,4,5,6-pentafluorobenzylidene)- 3-Acetyl-4-hydroxy-5-(2,3,4,5,6-pentafluorobenzylidene)-2(5H)-thiophenone BRN 1267142