mol="PRZ" Charge="0"
lab="N1"	NH="0" 
lab="C2"	NH="0" 
lab="C3"	NH="0" 
lab="N4"	NH="0" 
lab="C5"	NH="1" 
lab="C6"	NH="1" 
lab="C21"	NH="2" 
lab="C22"	NH="1" 
lab="C23"	NH="3" 
lab="C24"	NH="3" 
lab="O31"	NH="0" 
lab="C31"	NH="3" 
