Betamethasone Sodium Phosphate Impurity B

Chemical Name: 2-((8S,9R,10S,11S,13S,14S,16R,17R)-9-fluoro-11,17-dihydroxy-10,13,16-trimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl)-2-oxoethyl Disodium phosphate

Smile: O=P([O-])(OCC([C@@]1(O)[C@H](C)C[C@@]2([H])[C@]3([H])CCC4=CC(C=C[C@]4(C)[C@@]3(F)[C@@H](O)C[C@]12C)=O)=O)[O-].[Na+].[Na+]