pyrrole 

  1. 名詞
不可數名詞: 吡咯

    
                        
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例句

                

                    
    
                                                    
  1. 
                                Like chlorophyll, the pyrrole pigments are safe to eat.                            
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  2. 
                                They have four pyrrole rings, each ring consisting of C4H4NH.                            
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  3. 
                                Heterocyclics with relatively simple structures are pyrrole (5-membered) and indole (6-membered carbon ring).                            
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  4. 
                                This porphyrin ring consists of four pyrrole molecules cyclically linked together (by methine bridges) with the iron ion bound in the center.                            
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  5. 
                                Pyrrole is another 5-membered ring that is an aromatic compound: do you think we should include those two electrons in our electron count? 1220                            
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