1H-Benzimidazole-5-sulfonic acid, 2,3-dihydro-2-thioxo-, monosodium salt 1H-Benzimidazole-5-sulfonic acid, 2,3-dihydro-2-thioxo-, monosodiumsalt 2,3-Dihydro-2-thioxo-1H-benzimidazole-5-sulfonic acid, monosodium salt 53918-03-9 EINECS 258-862-0 Sodium 2,3-dihydro-2-thioxo-1H-benzimidazole-5-sulphonate