mercaptoethanoln.

Brit.

/məːkaptəʊˈɛθənɒl/, U.S.

/mərˌkæptoʊˈɛθəˌnɔl/,

/mərˌkæptoʊˈɛθəˌnɑl/; see also mercapto- comb. form.

Origin: Formed within English, by compounding. Etymons: mercapto- comb. form, ethanol n.

Etymology: < mercapto- comb. form + ethanol n.

Chemistry.

A liquid, HOCH₂CH₂SH, used as an intermediate in organic synthesis, as a chain transfer agent in polymerization reactions, and in buffer solutions to maintain protein sulphydryl groups in a reduced state; 2-hydroxyethylmercaptan.

ΚΠ

1947 Biochem. Jrnl. 41 49/2 BAL is also effective in detoxicating this arsenical, whereas a concentration of 2-mercaptoethanol equivalent to twice that of BAL is almost completely inactive.

1965 A. R. Peacocke & R. B. Drysdale Molecular Basis Heredity vii. 73 By inhibiting nuclear division in sea urchin eggs with mercaptoethanol, Mazia provided evidence that the prophase chromosome contains at least four strands.

1995 McGill Med. Jrnl. Spring 15/2 Cellular fractions collected..from the supernatant and pellet of the first centrifugation were solubilized in a solution of 2% sodium dodecyl sulfate..and 5% β-mercaptoethanol.

This entry has been updated (OED Third Edition, September 2001; most recently modified version published online March 2022).

单词	mercaptoethanol
释义	mercaptoethanoln. Brit. /məːkaptəʊˈɛθənɒl/, U.S. /mərˌkæptoʊˈɛθəˌnɔl/, /mərˌkæptoʊˈɛθəˌnɑl/; see also mercapto- comb. form. Origin: Formed within English, by compounding. Etymons: mercapto- comb. form, ethanol n. Etymology: < mercapto- comb. form + ethanol n. Chemistry. A liquid, HOCH₂CH₂SH, used as an intermediate in organic synthesis, as a chain transfer agent in polymerization reactions, and in buffer solutions to maintain protein sulphydryl groups in a reduced state; 2-hydroxyethylmercaptan. ΚΠ 1947 Biochem. Jrnl. 41 49/2 BAL is also effective in detoxicating this arsenical, whereas a concentration of 2-mercaptoethanol equivalent to twice that of BAL is almost completely inactive. 1965 A. R. Peacocke & R. B. Drysdale Molecular Basis Heredity vii. 73 By inhibiting nuclear division in sea urchin eggs with mercaptoethanol, Mazia provided evidence that the prophase chromosome contains at least four strands. 1995 McGill Med. Jrnl. Spring 15/2 Cellular fractions collected..from the supernatant and pellet of the first centrifugation were solubilized in a solution of 2% sodium dodecyl sulfate..and 5% β-mercaptoethanol. This entry has been updated (OED Third Edition, September 2001; most recently modified version published online March 2022). < n.1947
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