0  B7R0.6  OC(=O)CCC(O)=O HMDB0000254 [0,0,0,0,0,0|4,0,0]=4
1  B5R0.5  CC(=O)C(O)=O HMDB0000243 [0,0,0,0,2,0|2,0,0]=4
2  B5R0.5  NC(=C)C(O)=O HMDB0003609 [0,0,0,0,2,0|2,0,0]=4
3  B5R0.5  OC(=O)C(O)=O HMDB0002329 [0,0,0,0,2,0|2,0,0]=4