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3520894
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Information
Patent Grant
3520894
References
Source
Patent Number
3,520,894
Date Filed
Not available
Date Issued
Tuesday, July 21, 1970
53 years ago
CPC
C07D295/088 - to an acyclic saturated chain
C07C49/683 - having unsaturation outside the aromatic rings
C07C49/697 - containing six-membered aromatic rings
C07C49/753 - containing ether groups, groups, groups, or groups
C07C217/24 - the six-membered aromatic ring being part of a condensed ring system containing rings other than six-membered aromatic rings
C07D307/20 - Oxygen atoms
C07D317/72 - spiro-condensed with carbocyclic rings
C07C2102/10 - The other ring being six-membered (e.d. tetraline)
US Classifications
546 - Organic compounds
549 - Organic compounds
560 - Organic compounds
562 - Organic compounds
564 - Organic compounds
568 - Organic compounds
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