1,2-Diphenyl-4-isopentyl-3,5-pyrazolidinedione 3,5-Pyrazolidinedione, 1,2-diphenyl-4-isopentyl- 4-i.Amil-1,2-difenil-3,5-dicheto-pirazolidina [Italian] DA-194 P.M. 322 UQ8515500