2-Hydroxyethanesulfonic acid; a colorless viscous liquid, miscible with water and alcohols, that forms crystalline salts with organic acids.
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is·ethi·on·ic acid .īs-.ē-thē-.än-ik- n a crystalline sulfonic acid C2H6O4S used esp. in making surface-active agents
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is·eth·i·o·nic ac·id (is″eth-i-onґik) trivial name for 2-hydroxyethanesulfonic acid; used in detergents and surfactants and in synthesis.Medical dictionary. 2011.