1-Phenyl-4-methyl-4-hydroxymethyl-3-pyrazolidone 13047-13-7 3-Pyrazolidinone, 4-(hydroxymethyl)-4-methyl-1-phenyl- 4-(Hydroxymethyl)-4-methyl-1-phenyl-3-pyrazolidinone 4-(Hydroxymethyl)-4-methyl-1-phenylpyrazolidin-3-one 4-Hydroxymethyl-4-methyl-1-phenyl-3-pyrazolidone 72314-70-6 72395-79-0 Dimezone S EINECS 235-920-3