Beclometasone Dipropionate EP Impurity R

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Chemical Name : Betamethasone 9,11-Epoxy Impurity ; 9,11β-epoxy-17,21-dihydroxy-16β-methyl-9β-pregna-1,4-diene-3,20-dione

Smiles : O=C1C=C[C@@]([C@@]23[C@H](C[C@@]([C@](C(CO)=O)(O)[C@@H](C)C4)(C)[C@]4([H])[C@]3([H])CC5)O2)(C)C5=C1

Synonym : Exemestane USP Related Compound B

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