2-Thiophenecarboxylic acid, 2,5-dihydro-4-butyl-1,2-diphenyl-5-oxo-1H-pyrazol-3-yl ester 3-Pyrazolin-5-one, 4-butyl-1,2-diphenyl-3-hydroxy-, 2-thiophenecarboxylate (ester) 4-Butyl-1,2-dihydro-5-((2-thenoyl)oxy)-1,2-diphenyl-3H-pyrazol-3-one 4-Butyl-1,2-diphenyl-3-hydroxy-3-pyrazolin-5-one 2-thiophenecarboxylate (ester) 87792-14-1 SP 124