mol="X1S" Charge="0"
lab="CB"	NH="2" 
lab="CG"	NH="2" 
lab="CD"	NH="0" 
lab="OE1"	NH="0" 
lab="OE2"	NH="1" 
lab="O1"	NH="1" 
lab="O2"	NH="0" 
lab="O3"	NH="0" 
lab="S"	NH="0" 
