3872133

Information

• Patent Grant
• 3872133

• References
• Source

• Patent Number

  3,872,133

• Date Filed

  Not available

• Date Issued

  Tuesday, March 18, 1975
  49 years ago

• CPC

  • C07D471/04 - Ortho-condensed systems
  • C09B29/0029 - the heterocyclic ring containing only nitrogen as heteroatom
  • C09B44/14 - 1, 2-Diazoles or hydrogenated 1,2-diazoles Pyrazolium; Indazolium

• US Classifications

  • 546 - Organic compounds
  • 544 - Organic compounds