3-Methyl-1-(2-(2-naphthyloxy)ethyl)-2-pyrazolin-5-one, 2,4-Dihydro-5-methyl-2-(2-(2-naphthalenyloxy)ethyl)-3H-pyrazol-3-one, NAFAZATROM, 5-methyl-2-(2-naphthalen-2-yloxy-ethyl)-1,2-dihydro-pyrazol-3-one, 3H-Pyrazol-3-one,2,4-dihydro-5-methyl-2-(2-(2-naphthalenyloxy)ethyl), EINECS 261-571-1, Bay-g-6575, Nafazatromum [INN-Latin]