Marvin  09220714322D          

  1  0  0  0  0  0            999 V2000
    0.0000    0.0000    0.0000 Ps  0  5  0  0  0  0  0  0  0  0  0  0
M  CHG  1   1  -1
M  RAD  1   1   2
M  END
> <ID>
CHEBI:46710

> <NAME>
positronium(1-)

> <STAR>
3

> <SYNONYM>
Ps(-); positronium anion; e(+)e(-)e(-)

> <MASS>
0.00000

> <CHARGE>
-1

> <SMILES>
[*-]

$$$$