2094224

Information

• Patent Grant
• 2094224

• References
• Source

• Patent Number

  2,094,224

• Date Filed

  Not available

• Date Issued

  Tuesday, September 28, 1937
  87 years ago

• CPC

  • C07C39/12 - polycyclic with no unsaturation outside the aromatic rings
  • C07C37/04 - by substitution of SO3H groups or a derivative thereof
  • C07C41/16 - by reaction of esters of mineral or organic acids with hydroxy or O-metal groups
  • C07C309/38 - formed by at least three rings
  • C07C309/43 - having at least one of the sulfo groups bound to a carbon atom ofa six-membered aromatic ring being part of a condensed ring system
  • C07C2103/50 - (Hydrogenated) pyrenes

• US Classifications

  • 562 - Organic compounds
  • 568 - Organic compounds