3646005

Information

• Patent Grant
• 3646005

• References
• Source

• Patent Number

  3,646,005

• Date Filed

  Not available

• Date Issued

  Tuesday, February 29, 1972
  52 years ago

• CPC

  • C09B43/02 - by sulfonation
  • C07B45/02 - of sulfo or sulfonyldioxy groups
  • C07D231/56 - Benzopyrazoles Hydrogenated benzopyrazoles
  • C07D249/18 - Benzotriazoles
  • C07D263/56 - with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached in position 2
  • C07D263/58 - with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen
  • C07D277/68 - with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen

• US Classifications

  • 562 - Organic compounds
  • 534 - Organic compounds
  • 548 - Organic compounds