Sulfinpyrazone57-96-5100 % similar Phenylbutazone50-33-955 % similar Feprazone30748-29-948 % similar Oxazolidin129-20-447 % similar 5-Methyl-3-phenyl-2-thioxo-4-imidazolidinone4333-19-132 % similar 4,4′-Bis(1-phenyl-3-methyl-5-pyrazolone)7477-67-032 % similar Diphenamid957-51-732 % similar 1,3-Dimethyl-5-phenyl-2,4,6(1H,3H,5H)-pyrimidinetrione7391-66-430 % similar