1H-Benzimidazole-7-sulfonic acid, 2-heptadecyl-1-methyl-, sodium salt 2-Heptadecyl-3-methyl-4-benzimidazolesulfonic acid, sodium salt 68444-03-1 EINECS 270-575-2 Sodium 2-heptadecyl-1-methyl-1H-benzimidazole-7-sulphonate