2856404

Information

• Patent Grant
• 2856404

• References
• Source

• Patent Number

  2,856,404

• Date Filed

  Not available

• Date Issued

  Tuesday, October 14, 1958
  67 years ago

• CPC

  • C07D413/10 - linked by a carbon chain containing aromatic rings
  • C07D231/26 - 1-Phenyl-3-methyl-5- pyrazolones, unsubstituted or substituted on the phenyl ring
  • C07D239/60 - Three or more oxygen or sulfur atoms
  • C07D261/12 - Oxygen atoms
  • C07D277/36 - Sulfur atoms
  • C07D417/04 - directly linked by a ring-member-to-ring-member bond
  • C07D417/10 - linked by a carbon chain containing aromatic rings
  • C07D417/14 - containing three or more hetero rings
  • C07D421/10 - linked by a carbon chain containing aromatic rings
  • C09B23/0066 - the polymethine chain being part of a carbocyclic ring,(
  • C09B23/102 - two heterocyclic rings linked carbon-to-carbon

• US Classifications

  • 544 - Organic compounds
  • 546 - Organic compounds
  • 548 - Organic compounds
  • 568 - Organic compounds