0  B3R0.1  C(=O)CCl HMDB0013860 [2,0,0,0,0,0|1,0,0]=3
1  B3R0.1  C=CC=O HMDB0041822 [2,0,0,0,0,0|0,0,2]=4
2  B3R0.2  CC(O)=O HMDB0000042 [2,0,0,0,0,0|1,0,1]=4