RESIDUE   ARF      6
CONECT      N      3 C    HN1  HN2 
CONECT      C      3 N    O    H   
CONECT      O      1 C   
CONECT      HN1    1 N   
CONECT      HN2    1 N   
CONECT      H      1 C   
END   
HET    ARF              6
HETNAM     ARF FORMAMIDE
FORMUL      ARF    C1 H3 N1 O1