RESIDUE   VXA      8
CONECT      P1     4 O1   O2   C1   HP1 
CONECT      O1     1 P1  
CONECT      O2     1 P1  
CONECT      C1     4 P1   H11  H12  H13 
CONECT      H11    1 C1  
CONECT      H12    1 C1  
CONECT      H13    1 C1  
CONECT      HP1    1 P1  
END   
HET    VXA              8
HETNAM     VXA METHYLPHOSPHONIC ACID ESTER GROUP
FORMUL      VXA    C1 H4 O2 P1 1-