1251-85-0 3H-Pyrazol-3-one, 4,4'-methylenebis(1,2-dihydro-1,5-dimethyl-2-phenyl- 4,4'-Methylenebis(1,2-dihydro-1,5-dimethyl-2-phenyl-3H-pyrazol-3-one) 47545-55-1 Antipyrine, 4,4'-methylenedi- Bisantipyrylmethane Diantipyrinylmethane Diantipyrylmethane EINECS 215-009-7 NSC 60670