3158608

Information

• Patent Grant
• 3158608

• References
• Source

• Patent Number

  3,158,608

• Date Filed

  Not available

• Date Issued

  Tuesday, November 24, 1964
  60 years ago

• CPC

  • C09B44/123 - in a five-membered ring
  • C09B23/164 - containing one nitrogen atom
  • C09B26/04 - cationic
  • C09B44/102 - characterised by the coupling component having a reactive methylene group
  • C09B55/003 - with the -C=N- group attached to an heteroring
  • C09B56/18 - Hydrazone-azo dyes

• US Classifications

  • 546 - Organic compounds