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3637684
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Information
Patent Grant
3637684
References
Source
Patent Number
3,637,684
Date Filed
Not available
Date Issued
Tuesday, January 25, 1972
52 years ago
CPC
C07D239/553 - with halogen atoms or nitro radicals directly attached to ring carbon atoms
C07C55/34 - containing rings
C07D213/55 - Acids Esters
C07D239/545 - with other hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms
C07D307/54 - Radicals substituted by carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen
C07D333/24 - Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen
C07D471/14 - Ortho-condensed systems
C07D487/14 - Ortho-condensed systems
C07D513/14 - Ortho-condensed systems
US Classifications
544 - Organic compounds
548 - Organic compounds
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