RESIDUE   BUD     16
CONECT      C1     4 C2   H1   H1A  H1B 
CONECT      O1     2 C2   HO1 
CONECT      C2     4 C1   O1   C3   H2  
CONECT      O2     2 C3   HO2 
CONECT      C3     4 C2   O2   C4   H3  
CONECT      C4     4 C3   H4   H4A  H4B 
CONECT      H1     1 C1  
CONECT      H1A    1 C1  
CONECT      H1B    1 C1  
CONECT      HO1    1 O1  
CONECT      H2     1 C2  
CONECT      HO2    1 O2  
CONECT      H3     1 C3  
CONECT      H4     1 C4  
CONECT      H4A    1 C4  
CONECT      H4B    1 C4  
END   
HET    BUD             16
HETNAM     BUD (2S,3S)-butane-2,3-diol
FORMUL      BUD    C4 H10 O2