3920725

Information

• Patent Grant
• 3920725

• References
• Source

• Patent Number

  3,920,725

• Date Filed

  Not available

• Date Issued

  Tuesday, November 18, 1975
  49 years ago

• CPC

  • C07C205/55 - having nitro groups or carboxyl groups bound to carbon atoms of rings other than six-membered aromatic rings of the carbon skeleton
  • C07C45/62 - by hydrogenation of carbon-to-carbon double or triple bonds
  • C07C45/69 - by addition to carbon-to-carbon double or triple bonds
  • C07C49/443 - the condensed ring system containing eight or nine carbon atoms
  • C07C49/453 - having three rings
  • C07C49/633 - the condensed ring system containing eight or nine carbone atoms
  • C07C49/643 - having three rings
  • C07C62/38 - containing keto groups
  • C07C205/41 - having nitro groups or esterified hydroxy groups bound to carbon atoms of rings other than six-membered aromatic rings of the carbon skeleton
  • C07C205/45 - the carbon skeleton being further substituted by at least one doubly-bound oxygen atom, not being part of a -CHO group

• US Classifications

  • 560 - Organic compounds
  • 568 - Organic compounds