"Phentolamine" . "Z468598HBV" . "DB00692" . "8081" . . "Regitine, Oraverse" . "597" . . . . . . . . . . "Phentolamine" . . "," . . . . "50-60-2" . "D08362" . "5775" . . "Regitine" . . . . . . . . . "phentolamine" . . . .