C19H20N2O3
Neat
324.38
Phenylbutazone impurity B CRS
+5°C
Room Temperature
4-Butyl-4-hydroxy-1, 2-diphenylpyrazolidine-3, 5-dione, Phenylbutazone Imp. B (EP) and Phenylbutazone Impurity B
CCCCC1(O)C(=O)N(N(C1=O)c2ccccc2)c3ccccc3
4-butyl-4-hydroxy-1, 2-diphenylpyrazolidine-3 and 5-dione