1-(p-Hydroxyphenyl)-2-phenyl-3,5-dioxo-4-N-butylpyrazolidine 1-(p-Hydroxyphenyl)-2-phenyl-4-butyl-3,5-pyrazolidinedione 1-Phenyl-2-(p-hydroxyphenyl)-3,5-dioxo-4-butylpyrazolidine 129-20-4 3,5-Dioxo-1-phenyl-2-(p-hydroxyphenyl)-4-N-butylpyrazolidene 3,5-Pyrazolidinedione, 4-butyl-1-(4-hydroxyphenyl)-2-phenyl- 3,5-Pyrazolidinedione, 4-butyl-1-(p-hydroxyphenyl)-2-phenyl- 4-Butyl-1-(4-hydroxyphenyl)-2-phenyl-3,5-pyrazolidinedione 4-Butyl-1-(p-hydroxyphenyl)-2-phenyl-3,5-pyrazolidinedione 4-Butyl-2-(4-hydroxyphenyl)-1-phenyl-3,5-dioxopyrazolidine 4-Butyl-2-(p-hydroxyphenyl)-1-phenyl-3,5-pyrazolidinedione Artroflog BM 1 Butaflogin Butanova Butapirone Butazonic Butilene Crovaril Deflogin Etrozolidina Flamaril Flanaril Flogal Floghene Flogistin Flogitolo Flogodin Flogoril Flogostop Flopirina Frabel G 27202 Idrobutazina Infamil Infammil Ipabutona Iridil Isobutazina Isobutil Metabolite I Mysite NSC526053 Neo-Farmadol Neofen Offitril Optimal Oxalid Oxazolidin Oxazolidin-Geigy Oxi-Fenibutol Oxibutol Oxifenylbutazon Oxiphenbutazone Oxybuton Oxyphenbutazone Oxyphenobutazone Oxyphentamin Oxyphenylbutazone Pirabutina Piraflogin Poliflogil Rapostan Remazin Reumox Rumapax Tandacote Tandalgesic Tandearil Tanderal Tanderil Telidal Tendearil Usaf Ge-14 Valioil Visubutina WLN: T5VNNV EHJ BR DQ & CR & E4 p-Hydroxyphenylbutazone p-Oxyphenylbutazone