2940813

Information

• Patent Grant
• 2940813

• References
• Source

• Patent Number

  2,940,813

• Date Filed

  Not available

• Date Issued

  Tuesday, June 14, 1960
  64 years ago

• CPC

  • C07D235/06 - with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached in position 2
  • C07D233/90 - Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen
  • C07D235/08 - Radicals containing only hydrogen and carbon atoms
  • C07D235/12 - Radicals substituted by oxygen atoms
  • C07D235/22 - with hetero atoms directly attached to ring nitrogen atoms
  • C07D235/24 - with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen
  • C07D235/30 - Nitrogen atoms not forming part of a nitro radical
  • C09B9/00 - Esters or ester-salts of leuco compounds of vat dyestuffs
  • D06P1/28 - Esters of vat dyestuffs
  • D06P1/6426 - Heterocyclic compounds

• US Classifications

  • 008 - Bleaching and dyeing