3721687

Information

• Patent Grant
• 3721687

• References
• Source

• Patent Number

  3,721,687

• Date Filed

  Not available

• Date Issued

  Tuesday, March 20, 1973
  52 years ago

• CPC

  • A61K31/573 - substituted in position 21
  • C07J5/00 - Normal steroids containing carbon, hydrogen, halogen or oxygen, substituted in position 17 beta by a chain of two carbon atoms, e.g. pregnane and substituted in position 21 by only one singly bound oxygen atom
  • G02B7/22 - Extensible connections
  • Y10S514/887 - Topical treatment

• US Classifications

  • 552 - Organic compounds
  • 514 - Drug, bio-affecting and body treating compositions