Zn (II) Phthalocyanine Tetrasulfonic Acid

Zinc;2,11,20,29,37,39-hexaza-38,40-diazanidanonacyclo[28.6.1.13,10.112,19.121,28.04,9.013,18.022,27.031,36]tetraconta-1,3,5,7,9,11,13 (18),14,16,19 (39),20,22 (27),23,25,28,30 (37),31 (36),32,34-nonadecaene-6,15,24,33-tetrasulfonic acid

C1=CC2=C (C=C1S (=O) (=O) O) C3=NC4=NC (=NC5=C6C=CC (=CC6=C ([N-]5) N=C7C8=C (C=C (C=C8) S (=O) (=O) O) C (=N7) N=C2[N-]3) S (=O) (=O) O) C9=C4C=CC (=C9) S (=O) (=O) O.[Zn+2]