3663577

Information

• Patent Grant
• 3663577

• References
• Source

• Patent Number

  3,663,577

• Date Filed

  Not available

• Date Issued

  Tuesday, May 16, 1972
  52 years ago

• CPC

  • C09B1/22 - Dyes with unsubstituted amino groups
  • C09B1/06 - Preparation from starting materials already containing the anthracene nucleus
  • C09B1/20 - Preparation from starting materials already containing the anthracene nucleus
  • C09B1/26 - Dyes with amino groups substituted by hydrocarbon radicals
  • C09B1/32 - substituted by aryl groups
  • C09B3/10 - Amino derivatives
  • C09B5/00 - Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings
  • C09B23/143 - the ethylene chain carrying a COOH or a functionally modified derivative, e.g.-CN, -COR, -COOR, -CON=, C6H5-CH=C-CN
  • C09B62/0068 - dyes containing in the molecule at least one azo group and at least one other chromophore group

• US Classifications

  • 552 - Organic compounds
  • 544 - Organic compounds
  • 546 - Organic compounds
  • 548 - Organic compounds