0 B7R0.6 OC(=O)CCC(O)=O HMDB0000254 [2,0,0,0,0,0|0,0,0]=2 1 B9R0.7 OC(=O)CCC(=O)C(O)=O HMDB0000208 [1,1,0,0,0,0|2,0,0]=4