3899504

Information

• Patent Grant
• 3899504

• References
• Source

• Patent Number

  3,899,504

• Date Filed

  Not available

• Date Issued

  Tuesday, August 12, 1975
  49 years ago

• CPC

  • C07D263/58 - with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen
  • C07D277/68 - with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen
  • C08K5/0041 - Optical brightening agents, organic pigments
  • C09B1/206 - Dyes with amino groups substituted by heterocyclic radicals
  • C09B1/56 - Mercapto-anthraquinones
  • C09B3/10 - Amino derivatives
  • C09B5/00 - Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings

• US Classifications

  • 548 - Organic compounds
  • 106 - Compositions: coating or plastic
  • 544 - Organic compounds
  • 546 - Organic compounds