Sulphur and selenium compounds play vital roles in biological systems, serving as components of amino acids, enzymes, and antioxidants.

CAS Number
69-57-8
Alternate CAS Number
6011-39-8(Clemizol Salt);61-33-6(Freebase);113-98-4(Potassium Salt)
CAS Number
58-38-8
Alternate CAS Number
84-02-6 (Dimaleate Salt); 60-90-2 (HCl Salt); 51888-09-6 (Dimesylate salt) ;1257-78-9 (Edisylate salt)
CAS Number
1356906-17-6
Alternate CAS Number
1825392-15-1 (2HCl salt) ; 2470243-24-2 (Fumarate Salt)
CAS Number
57-68-1
Alternate CAS Number
1981-58-4 (Na Salt)