Ammonium hexachlorostannate (also known as pink salt) is an inorganic chemical compound with the chemical formula (NH4)2SnCl6.

[1][2][3] A reaction of pure tin tetrachloride with ammonium chloride:[4] The compound is composed of white crystals and is a corrosive agent.

[5] The compound is used as a mordant in dyeing.

[4]