3838157

Information

• Patent Grant
• 3838157

• References
• Source

• Patent Number

  3,838,157

• Date Filed

  Not available

• Date Issued

  Tuesday, September 24, 1974
  50 years ago

• CPC

  • C07D213/22 - containing two or more pyridine rings directly linked together
  • C07D213/30 - Oxygen atoms
  • C07D213/32 - Sulfur atoms
  • C07D213/38 - having only hydrogen, hydrocarbon radicals attached to the substituent nitrogen atom
  • C07D213/51 - Acetal radicals
  • C07D213/56 - Amides

• US Classifications

  • 546 - Organic compounds