3901920

Information

• Patent Grant
• 3901920

• References
• Source

• Patent Number

  3,901,920

• Date Filed

  Not available

• Date Issued

  Tuesday, August 26, 1975
  49 years ago

• CPC

  • C07D319/08 - condensed with carbocyclic rings or ring systems
  • C07D267/06 - having the hetero atoms in positions 1 and 3

• US Classifications

  • 549 - Organic compounds
  • 564 - Organic compounds