mol="GBN" Charge="0"
lab="N1"	NH="2" 
lab="C2"	NH="2" 
lab="C3"	NH="2" 
lab="C1R"	NH="0" 
lab="C2R"	NH="2" 
lab="C3R"	NH="2" 
lab="C4R"	NH="2" 
lab="C5R"	NH="2" 
lab="C6R"	NH="2" 
lab="C"	NH="0" 
lab="OA"	NH="1" 
lab="OB"	NH="0" 
