0  B6R1.2  CC1=CNN=C1 HMDB0015344 [1,0,0,0,0,0|2,0,1]=4
1  B6R0.4  CCCOC(C)=O HMDB0034237 [0,0,1,0,0,0|1,0,2]=4
2  B6R0.4  OCCCC([O-])=O HMDB0015507 [0,0,1,0,0,0|2,0,1]=4
3  B7R1.4  N[C@@H]1CONC1=O HMDB0014405 [1,1,0,0,0,0|2,0,0]=4