0 B3R0.2 C[NH+](C)C gut37 [2,0,0,0,0,0|2,0,0]=4 1 B7R0.16 C[C@@H]([C@@H](C(=O)[O-])O)O 23-Dihydroxybutanoate_1 [0,2,0,0,0,0|0,0,2]=4 2 B7R0.16 C[C@@H]([C@H](C(=O)[O-])O)O 23-Dihydroxybutanoate_2 [0,2,0,0,0,0|0,0,2]=4 3 B7R0.16 C[C@H]([C@@H](C(=O)[O-])O)O 23-Dihydroxybutanoate_3 [0,2,0,0,0,0|0,0,2]=4 4 B7R0.16 C[C@H]([C@H](C(=O)[O-])O)O 23-Dihydroxybutanoate_4 [0,2,0,0,0,0|0,0,2]=4