3725384

Information

• Patent Grant
• 3725384

• References
• Source

• Patent Number

  3,725,384

• Date Filed

  Not available

• Date Issued

  Tuesday, April 3, 1973
  52 years ago

• CPC

  • C09B43/28 - by etherification of hydroxyl groups
  • C09B31/02 - Disazo dyes
  • C09B31/062 - Phenols
  • C09B31/065 - containing acid groups
  • C09B43/24 - with formation of -O-SO2-R or -O-SO3H radicals
  • C09B43/325 - by reacting sulfonic acids with amines

• US Classifications

  • 534 - Organic compounds