Standard search operators (e.g., +, -, ~, *) may be combined to search within a designated search
                  field. Some examples are given below.
                Search Examples
                
                  
                  
                    | aromatic | the word “aromatic” | 
                  
                    | aromatic aldehyde | the word “aromatic” OR “aldehyde” | 
                  
                    | +aromatic +aldehyde | both words “aromatic” AND “aldehyde” | 
                  
                    | +aromatic -aldehyde | the word “aromatic” but NOT “aldehyde” | 
                  
                    | “aromatic aldehyde” | the exact phrase “aromatic aldehyde” | 
                  
                    | benz* | words which begin with “benz”, such as “benzene” or “benzyl” | 
                  
                    | benz*yl | words that begin with “benz” and end with “yl”, such as “benzyl” or
                      “benzoyl” | 
                  
                    | benzyl~ | words that are close to the word “benzyl”, such as “benzoyl” (i.e., fuzzy
                      search) |