3847894

Information

• Patent Grant
• 3847894

• References
• Source

• Patent Number

  3,847,894

• Date Filed

  Not available

• Date Issued

  Tuesday, November 12, 1974
  50 years ago

• CPC

  • C09B62/026 - Azo dyes
  • C09B29/3626 - from a pyridine ring containing one or more hydroxyl groups (or = O)
  • C09B62/0067 - with heterocyclic compound as coupling component
  • C09B62/028 - Monoazo dyes

• US Classifications

  • 534 - Organic compounds