1766949

Information

• Patent Grant
• 1766949

• References
• Source

• Patent Number

  1,766,949

• Date Filed

  Not available

• Date Issued

  Tuesday, June 24, 1930
  94 years ago

• CPC

  • C09B45/38 - Preparation from compounds with -OH and -COOH adjacent in the same ring or in peri position
  • C07C317/32 - with sulfone or sulfoxide groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton
  • C07C2101/16 - The ring being unsaturated

• US Classifications

  • 534 - Organic compounds
  • 562 - Organic compounds