Disulfide

Not to be confused with Bisulfide.
This article is about inorganic and organic disulfides. For disulfides in proteins, see Disulfide (biochemistry).

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. In inorganic chemistry, the anion appears in a few rare minerals. Compounds of the form R−S−S−H are usually called persulfides instead.

Disulfide bridges also appear as a common post-translational modification in proteins.

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