Bis(3-methyl-anilinium) naphthalene-1,5-disulfonate.
In the crystal of the title mol-ecular salt, 2C(7)H(10)N(+)·C(10)H(6)O(6)S(2) (2-), the naphthalene-1,5-disulfonate anion is located on an inversion center and accepts N-H⋯O hydrogen bonds from the 3-methyl-anilinium cations, forming supra-molecular layers parallel to the ac plane.
Ordered Matter Science Research Center, Southeast University, Nanjing 211189,  People's Republic of China.
Ming-Liang
ML
Liu
Zi-Qi
ZQ
Chen