Remazol Turquoise Blue G

C1=CC(=CC=C1NS(=O)(=O)C2=CC3=C(C=C2)C4=NC5=NC(=NC6=NC(=NC7=C8C=C(C=CC8=C([N-]7)N=C3[N-]4)S(=O)(=O)O)C9=C6C=C(C=C9)S(=O)(=O)O)C1=C5C=C(C=C1)S(=O)(=O)O)S(=O)(=O)CCO.[Cu+2]