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Product of Arkema Inc. Dimethyl disulfide (DMDS) may be used to derivatize alkenes for the determination of position of double bond by MS. It may also be used to determine the location of the double-bond position of monounsaturated fatty acids in Campylobacter cryaerophila by combined GC-MS analysis.
Disulfide bonds [edit]. Disulfide bonds form between the sulfur atoms of two cysteine side chains in a protein. The side chains undergo a reversible oxidation of the sulfhydryl groups of the cysteine, wich results in covalent bonding of the sulfur atoms (S-S). This bonding is called a disulfide bridge.