RESIDUE   P2D     15
CONECT      C1     4 C2   H1   H2   H3  
CONECT      C2     3 C1   C3   O2  
CONECT      C3     4 C2   C4   H4   H5  
CONECT      C4     3 C3   C5   O4  
CONECT      C5     4 C4   H6   H7   H8  
CONECT      O2     1 C2  
CONECT      O4     1 C4  
CONECT      H1     1 C1  
CONECT      H2     1 C1  
CONECT      H3     1 C1  
CONECT      H4     1 C3  
CONECT      H5     1 C3  
CONECT      H6     1 C5  
CONECT      H7     1 C5  
CONECT      H8     1 C5  
END   
HET    P2D             15
HETNAM     P2D pentane-2,4-dione
FORMUL      P2D    C5 H8 O2