1-Phenyl-2-aethyl-3-methyl-4-n-butyl-5-pyrazolon [German] 3-Pyrazolin-5-one, 4-butyl-2-ethyl-3-methyl-1-phenyl- 4-Butyl-2-ethyl-3-methyl-1-phenyl-3-pyrazolin-5-one UQ8977200