@<TRIPOS>MOLECULE
SO3_431_5CAC
    4     3     0     0     0
SMALL
USER_CHARGES

@<TRIPOS>ATOM
      1 O1         -4.7340    1.5430   17.5190 O.3       1 <0>        -0.7862
      2 O2         -5.4220   -0.5000   16.3890 O.3       1 <0>        -0.7862
      3 O3         -7.0270    1.5430   16.8130 O.2       1 <0>        -0.2869
      4 S1         -5.9780    0.6250   17.3780 S.o       1 <0>        -0.1407
@<TRIPOS>BOND
     1    1    4 1
     2    2    4 1
     3    3    4 2