Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
A61K31/00—Medicinal preparations containing organic active ingredients
A61K31/56—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids
A61K31/575—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids substituted in position 17 beta by a chain of three or more carbon atoms, e.g. cholane, cholestane, ergosterol, sitosterol
Verfahren zur Umwandlung von solchen Metallen und Legierungen, die von Schwefelsaeure nicht oder nur langsam geloest werden, in die entsprechenden Sulfate unter Benutzung von Salpetersaeure