3644342

Information

• Patent Grant
• 3644342

• References
• Source

• Patent Number

  3,644,342

• Date Filed

  Not available

• Date Issued

  Tuesday, February 22, 1972
  52 years ago

• CPC

  • C07D307/00 - Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
  • C07C59/74 - containing -CHO groups
  • C07C59/92 - containing -CHO groups
  • C07J73/003 - by oxygen as hetero atom
  • C07C2103/16 - (Hydrogenated) benz[e]indenes

• US Classifications

  • 540 - Organic compounds
  • 549 - Organic compounds
  • 562 - Organic compounds