3557159

Information

• Patent Grant
• 3557159

• References
• Source

• Patent Number

  3,557,159

• Date Filed

  Not available

• Date Issued

  Tuesday, January 19, 1971
  53 years ago

• CPC

  • C07C205/23 - having two nitro groups bound to the ring
  • C07C205/46 - the carbon skeleton containing carbon atoms of quinone rings
  • Y10S8/917 - Wool or silk

• US Classifications

  • 552 - Organic compounds
  • 008 - Bleaching and dyeing
  • 568 - Organic compounds