disulfide

plural disulfides · alternative disulphide

1. chemistryA functional group with two sulfur atoms bonded to one another, described by the following formula: R–S–S–R'.
2. chemistryThe anion ⁻S–S⁻.
3. chemistryA binary compound of sulfur and another element in the ratio 2:1 (formula XS₂).

   By analysing data from the James Webb Space Telescope, the researchers found evidence of dimethyl sulfide and dimethyl disulfide in the atmosphere of the planet known as K2-18b. The planet is 124 light-years away; one light-year is equivalent to nearly 6 trillion miles.

   2025 April 18, “Scientists detect strong evidence of life on an alien planet”, in France 24, archived from the original on 18 Apr 2025