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1903196
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Information
Patent Grant
1903196
References
Source
Patent Number
1,903,196
Date Filed
Not available
Date Issued
Tuesday, March 28, 1933
91 years ago
CPC
C07D401/12 - linked by a chain containing hetero atoms as chain links
C07D211/70 - with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
C07D215/40 - attached in position 8
C07D279/34 - with hetero atoms directly attached to the ring sulfur atom
US Classifications
546 - Organic compounds
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