1880490

Information

• Patent Grant
• 1880490

• References
• Source

• Patent Number

  1,880,490

• Date Filed

  Not available

• Date Issued

  Tuesday, October 4, 1932
  92 years ago

• CPC

  • C09B5/026 - only S-containing hetero rings
  • C07D335/04 - condensed with carbocyclic rings or ring systems

• US Classifications

  • 549 - Organic compounds