3663530

Information

• Patent Grant
• 3663530

• References
• Source

• Patent Number

  3,663,530

• Date Filed

  Not available

• Date Issued

  Tuesday, May 16, 1972
  52 years ago

• CPC

  • C07C205/57 - having nitro groups and carboxyl groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton
  • C09B31/02 - Disazo dyes
  • C09B31/147 - Pyrazoles
  • C09B43/18 - by acylation of hydroxyl group or of mercapto group
  • C09B43/30 - by esterification of -COOH or -SO3H groups

• US Classifications

  • 534 - Organic compounds
  • 548 - Organic compounds
  • 560 - Organic compounds