Standard Lemma guide

mercaptoethanol

noun · 1 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

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Pronunciation

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1

noun

Meaning 1

A compound of ethanol with a thiol group, often specifically 2-mercaptoethanol, which is used in various organic chemistry applications including protein denaturation

Definition source: English Wiktionary via Wiktextract

Topics: chemistry, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Etymology tree Latin mercurium substratebor.? Proto-Indo-European *kap- Proto-Indo-European *-yéti Proto-Indo-European *kapyéti Proto-Italic *kapjō Old Latin kapiō Latin capiō Proto-Indo-European *-tós Proto-Italic *-tos Latin -tus Proto-Indo-European *-h2 Proto-Indo-European *-éh2 Proto-Indo-European *-yéti Proto-Indo-European *-eh2yéti Proto-Indo-European *-h2tiinflu. Proto-Italic *-ājō Proto-Italic *-āō Latin -ō Latin -tō Latin captō Latin captāns Latin mercurium captānsder. English mercapto- German Ethylbor. English ethyl Akkadian 𒎎𒋆𒁉𒍣𒁕 (guḫlum)bor. Aramaic כוחלא (kuḥlā)bor. Arabic كُحْل (kuḥl) Andalusian Arabic اَلْكُحُول (al-kuḥūl)bor. Medieval Latin alcoholder. Middle English alcofol English alcohol ▲ English ethyl English eth- Proto-Indo-European *-nós Proto-Italic *-nos Latin -nus Latin -ānusder. English -ane English ethane ▲ English alcohol English -ol English ethanol English mercaptoethanol From mercapto- + ethanol.