1H-Benzimidazole-4-thiol,6-amino-(9CI) (CAS 10597-56-5, C7H7N3S), is a white solid, widely used in pharmaceutical research and organic synthesis, with its unique sulfur-containing structure. It plays a crucial role as a building block in the synthesis of various biologically active compounds and pharmaceutical intermediates. The compound exhibits excellent nucleophilic reactivity due to the presence of the amino and thiol functional groups, making it suitable for various chemical transformations. Its versatile nature and special properties make it an important compound in the field of medicinal chemistry and drug discovery.