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4-Butyl-4-hydroxy-1,2-diphenyl-3,5-pyrazolidinedione;
1,2-Diphenyl-4-butyl-4-hydroxypyrazolidine-3,5-dione;
1,2-Diphenyl-4-hydroxy-4-butylpyrazolidine-3,5-dione;
4-Hydroxyphenylbutazone;
NSC 382672
95%
Heterocycles, Impurities
Pharmaceutical Impurity