-SH.
The presence of a sulfhydryl groups defines a thiol. These sulfur-containing functional groups are the defining component of the R group of the amino acid, cysteine. The breakdown of thiols results in the production of hydrogen sulfide which can be indicative of anaerobic decomposition such as can occur in organics-rich muds.
For more on this topic, see Wikipedia and Google. Contact web master. Return to home.
