Ammonium [(1S)-(endo,anti)]-(-)-3-bromo-camphor-8-sulfonate.

In the title mol-ecular salt, NH(4) (+)·C(10)H(14)BrO(4)S(-), the norbornane skeleton of the anion is composed of two five-membered rings in envelope conformations and a six-membered ring with one Br atom, one carbonyl O atom and a methyl group held in a boat conformation by a bridging methyl-ene group. Short intra-molecular C-H⋯O and C-H⋯Br inter-actions occur. In the crystal, the component ions are linked by inter-molecular N-H⋯O and C-H⋯O hydrogen bonds.