Prednisone EP Impurity A Sulfate salt

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Chemical Name : 17,21-dihydroxypregn-4-ene-3,11,20-trione Sulfate salt (as per EP)

Smiles : C[C@@]1(C2)[C@](C(CO)=O)(O)CC[C@@]1([H])[C@]3([H])CCC4=CC(CC[C@]4(C)[C@@]3([H])C2=O)=O.O=[S](O)(O)=O

Synonym : Rifampicin quinone

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