In the reaction of pyridine-2-carb-oxy-lic acid and stannic chloride in the presence of 2-methyl-8-hy-droxy-quinoline, the 2-methyl-8-hy-droxy-quinoline is protonated, yielding the title salt, (C(10)H(10)NO)[SnCl(4)(C(6)H(4)NO(2))]. The Sn(IV) atom in the anion is N,O-chelated by a pyridine-2-carboxyl-ate in a cis-SnNOCl(4) octa-hedral geometry. The cation is linked to the anion by an O-H⋯O hyd...