mol="TZC" Charge="1"
lab="N1"	NH="0" 
lab="N2"	NH="0" 
lab="C3"	NH="1" 
lab="N4"	NH="0" 
lab="C5"	NH="1" 
lab="C6"	NH="0" 
lab="N7"	NH="2" 
lab="N8"	NH="2" 
