10586-40-0 2(5H)-Thiophenone, 3-acetyl-4-hydroxy-5-((4-nitrophenyl)methylene)- 2(5H)-Thiophenone, 3-acetyl-4-hydroxy-5-(p-nitrobenzylidene) 2,4-Pentadienoic acid, 2-acetyl-3-hydroxy-4-mercapto-5-(p-nitrophenyl)-, gamma-(thio lactone) 3-Acetyl-5-p-nitrobenzylidene-2,5-dihydro-4-hydroxy-2-oxothiophen BRN 1257444 ICI 41141