0  B6R0.1  CNC(=S)NCO DB13838 [1,1,0,0,0,0|2,0,0]=4
1  B6R0.4  O=C([O-])CCCO DB01440 [1,1,0,0,0,0|1,0,1]=4
2  B6R0.4  O=C([O-])CCCO DB09072 [1,1,0,0,0,0|1,0,1]=4
3  B6R1.1  C1CNCCN1 DB00592 [1,0,0,1,0,0|2,0,0]=4