3697501

Information

• Patent Grant
• 3697501

• References
• Source

• Patent Number

  3,697,501

• Date Filed

  Not available

• Date Issued

  Tuesday, October 10, 1972
  52 years ago

• CPC

  • C09B44/14 - 1, 2-Diazoles or hydrogenated 1,2-diazoles Pyrazolium; Indazolium
  • C09B29/3621 - from a pyridine ring
  • C09B43/325 - by reacting sulfonic acids with amines

• US Classifications

  • 534 - Organic compounds
  • 548 - Organic compounds