Back ثنائي كبريتيد Arabic Дисулфид Bulgarian Disulfid BS Disulfidy Czech Disulfide German Dusulfido Esperanto Disulfuro Spanish دیسولفید Persian Disulfidi Finnish Disulfure French
In chemistry, a disulfide (or disulphide in British English) is a compound containing a R−S−S−R′ functional group or the S2−
2 anion. The linkage is also called an SS-bond or sometimes a disulfide bridge and usually derived from two thiol groups.
In inorganic chemistry, the anion appears in a few rare minerals, but the functional group has tremendous importance in biochemistry. Disulfide bridges formed between thiol groups in two cysteine residues are an important component of the tertiary and quaternary structure of proteins.
Compounds of the form R−S−S−H are usually called persulfides instead.