2(5H)-Furanone, 4-(5-(1,1-dimethylethyl)-4,5-dihydro-1-phenyl-1H-pyrazol-3-yl)-3-hydroxy- 4-(5-(1,1-Dimethylethyl)-4,5-dihydro-1-phenyl-1H-pyrazol-3-yl)-3-hydroxy-2(5H)-furanone 61566-85-6