mol="NNW" Charge="0"
lab="C15"	NH="2" 
lab="C16"	NH="0" 
lab="C17"	NH="1" 
lab="C18"	NH="1" 
lab="C19"	NH="1" 
lab="C20"	NH="1" 
lab="N23"	NH="2" 
lab="N24"	NH="0" 
