1976145

Information

• Patent Grant
• 1976145

• References
• Source

• Patent Number

  1,976,145

• Date Filed

  Not available

• Date Issued

  Tuesday, October 9, 1934
  90 years ago

• CPC

  • C07C65/15 - with carboxyl groups on a condensed ring system containing more than two rings
  • C07C255/45 - having cyano groups bound to carbon atoms of rings other than six-membered aromatic rings

• US Classifications

  • 562 - Organic compounds