0  B9R0.24  COC(=O)CCC(=O)CN HMDB0015127 [0,1,0,0,0,0|0,0,0]=1
1  B6R0.4  CCCOC(C)=O HMDB0034237 [2,0,0,0,0,0|1,0,1]=4
2  B6R0.4  OCCCC([O-])=O HMDB0015507 [2,0,0,0,0,0|1,0,1]=4
3  B8R0.23  CC(C)C[C@H](N)C(O)=O HMDB0000687 [1,1,0,0,0,0|1,0,1]=4
4  B6R0.2  OC(=O)CC(O)=O HMDB0000691 [1,0,0,0,1,0|1,0,0]=3