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            This is a file from the  Wikimedia Commons. Information from its  description page there is shown below.  Commons is a freely licensed media file repository.  You can help. 
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        Summary 
        
         
          
           | Description | 
           chemical structure of  en:tetrahydrofuran.
             
              
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               This  vector image was created with  Inkscape. | 
               
              
             
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           | Date | 
           10 January 2007 | 
          
          
           | Source | 
           Own work | 
          
          
           | Author | 
            User:Vladsinger | 
          
         
         
         Licensing 
        
         
          | Public domainPublic domainfalsefalse | 
         
        
        
         
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          This image of a simple  structural formula is ineligible for  copyright and therefore in the  public domain, because it consists entirely of information that is common property and contains no original authorship.  
           
            
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       File usage
       
        The following pages on Schools Wikipedia link to this image (list may be incomplete):
        
        
       
       This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from its original state, some details may not fully reflect the modified file.
        
       
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