Cas No search for molecular info

Cas No|Cas Number|CAS Registry Number:40828-54-4 .
Chemical Name|Molecular Name:1h-benzimidazole-2-sulfonic acid
Formulanor:C7H6N2O3S
Synonyms:1H-benzimidazol-2-sulphonic acid, 1H-Benzoimidazole-2-sulfonic acid, Benzimidazol-2-ylsulfonic acid, MFCD00100972, benzimidazole-2-sulfonic acid, 1H-Benzimidazole-2-sulfonicacid, Rabeprazole Impurity 20
Molecular Weight:198.199