3657287

Information

• Patent Grant
• 3657287

• References
• Source

• Patent Number

  3,657,287

• Date Filed

  Not available

• Date Issued

  Tuesday, April 18, 1972
  52 years ago

• CPC

  • C07C50/28 - with monocyclic quinoid structure
  • C07C46/00 - Preparation of quinones
  • C07C46/06 - of at least one hydroxy group on a six-membered aromatic ring
  • C07C46/08 - with molecular oxygen
  • C07C46/10 - Separation Purification Stabilisation Use of additives
  • C07C50/06 - with unsaturation outside the quinoid structure
  • C07C50/14 - with unsaturation outside the ring system

• US Classifications

  • 552 - Organic compounds
  • 502 - Catalyst, solid sorbent, or support therefor: product or process of making
  • 549 - Organic compounds