N-phenyl-morpholine-4-carboximidothioic acid, mercury(II) salt

[(4E)-4-[2,5-bis[(C-morpholin-4-yl-N-phenylcarbonimidoyl)oxy]pyrrol-3-ylidene]-5-(C-morpholin-4-yl-N-phenylcarbonimidoyl)oxypyrrol-2-yl] N-phenylmorpholine-4-carboximidate