3340256

Information

• Patent Grant
• 3340256

• References
• Source

• Patent Number

  3,340,256

• Date Filed

  Not available

• Date Issued

  Tuesday, September 5, 1967
  57 years ago

• CPC

  • C07D257/08 - Six-membered rings
  • C09B43/00 - Preparation of azo dyes from other azo compounds
  • C09B43/003 - Cyclisation of azo dyes; Condensation of azo dyes with formation of ring
  • C09B50/00 - Formazane dyes Tetrazolium dyes
  • Y10T436/14 - Heterocyclic carbon compound [

• US Classifications

  • 544 - Organic compounds
  • 252 - Compositions
  • 436 - Chemistry: analytical and immunological testing