3575993

Information

• Patent Grant
• 3575993

• References
• Source

• Patent Number

  3,575,993

• Date Filed

  Not available

• Date Issued

  Tuesday, April 20, 1971
  53 years ago

• CPC

  • C07D213/30 - Oxygen atoms
  • C07D213/20 - Quaternary compounds thereof
  • C07D215/10 - Quaternary compounds
  • C07D235/06 - with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached in position 2
  • C07D257/04 - Five-membered rings
  • C07D293/06 - Selenazoles Hydrogenated selenazoles
  • G03C1/835 - Macromolecular substances therefor

• US Classifications

  • 546 - Organic compounds
  • 430 - Radiation imagery chemistry: process, composition, or product thereof
  • 548 - Organic compounds