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2-Mercaptoethanol (also β-mercaptoethanol) is the chemical compound with the formula HOCH2CH2SH. It is a hybrid of ethylene glycol, HOCH2CH2OH, and 1,2-ethanedithiol, HSCH2CH2SH. ME or βME, as it is commonly abbreviated, is used to reduce disulfide bonds and can act as a biological antioxidant by scavaging hydroxyl radicals (amongst others) . It is widely used because the hydroxyl group confers solubility in water and lowers the volatility. Due to its diminished vapor pressure, its odour, while unpleasant, is less objectionable than related thiols.
Proteins are denatured by 2-mercaptoethanol via its ability to cleave disulfide bonds:
2-Mercaptoethanol is one of the few chemicals that extends the maximum as well as the median life span of mice. In microgram quantities, 2-mercaptoethanol has been observed to have a number of possibly beneficial effects on laboratory mice.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "2-Mercaptoethanol". A list of authors is available in Wikipedia.|