(E)-4-[2-(4-Eth­oxy­phen­yl)ethen­yl]-1-methyl­pyridinium naphthalene-2-sulfonate

In the title salt, C₁₆H₁₈NO⁺·C₁₀H₇O₃S⁻, the substituents attached to the central C=C bond adopt a trans conformation and the benzene and pyridinium rings are nearly coplanar, making a dihedral angle of 6.01 (9)°. The crystal structure features weak C—H...O hydrogen bonds and C—H...π inter­actions .