0  B8R0.9  NCC(=O)CCC(=O)O 4157-5-07 [1,0,0,0,0,0|2,0,1]=4
1  B8R0.9  NCC(=O)NCC(=O)O 4157-1-X3 [1,0,0,0,0,0|1,0,2]=4
2  B7R0.16  CC(C)[C@H](O)C(=O)O 2129-1-S3 [0,0,0,0,2,0|1,0,1]=4