Novel polymorphic crystal forms of 5-(2-{[6-(2,2-difluoro-2-phenylethoxy)hexyl]amino}-1-(R)-hydroxyethyl)-8-hydroxyquinolin-2(1H)-one, heminapadisylate as agonist of the beta2 adrenergic receptor.
The present invention is directed to novel polymorphic crystal forms of a 5-(2-{[6-(2,2-difluoro-2-phenylethoxy)hexyl]amino}-1-(R)-hydroxyethyl)-8-hydroxyquinolin-2(1