PHOSPHORIC ACID MONO-(2-AMINO-4-OXO-5,6-DITHIOXO-1,5,6,7,8A,9,10,10A-OCTAHYDRO-4H-8-OXA-1,3,9,10-TETRAAZA-ANTHRACEN-7-YLMETHYL) ESTER C([C@@H]1C(=S)C(=S)[C@H]2[C@@H](O1)NC3=C(N2)C(=O)N=C(N3)N)OP(=O)(O)O MPN