3331862

Information

• Patent Grant
• 3331862

• References
• Source

• Patent Number

  3,331,862

• Date Filed

  Not available

• Date Issued

  Tuesday, July 18, 1967
  57 years ago

• CPC

  • C07F9/65517 - condensed with carbocyclic rings or carbocyclic ring systems
  • C09B11/08 - Phthaleins; Phenolphthaleins; Fluorescein
  • C12Q1/42 - involving phosphatase
  • C12Q2334/40 - Triphenylmethane dye chromogens

• US Classifications

  • 552 - Organic compounds
  • 436 - Chemistry: analytical and immunological testing
  • 549 - Organic compounds
  • 558 - Organic compounds
  • 987 - Organic compounds containing a bi, sb, as, or p atom or containing a metal atom of the 6th to 8th group of the periodic system