0  B5R0.5  CC(O)C(O)=O DB04398 [0,0,0,0,1,0|2,0,1]=4
1  B5R0.5  CC(O)C([O-])=O DB06768 [0,0,0,0,1,0|2,0,1]=4
2  B5R0.5  C[C@H](N)C(O)=O DB00160 [0,0,0,0,1,0|2,0,1]=4
3  B4R0.1  CC(=O)NO DB00551 [2,0,0,0,0,0|2,0,0]=4