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2220243
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Information
Patent Grant
2220243
References
Source
Patent Number
2,220,243
Date Filed
Not available
Date Issued
Tuesday, November 5, 1940
83 years ago
CPC
C07D239/36 - as doubly bound atom or as unsubstituted hydroxy radical
C07D231/50 - Acylated on said nitrogen atom
C07D239/42 - One nitrogen atom
US Classifications
544 - Organic compounds
548 - Organic compounds
564 - Organic compounds
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