hydroxylamine

hydroxylamine
1. NH2OH; a partially oxidized derivative of ammonia; reacts with carbonyl groups to produce oximes; forms acid salts, e.g., h. hydrochloride. It is a chemical mutagen that causes deamination of cytosine residues in DNA. 2. Any compound containing RNH—OH.
- h. reductase an enzyme catalyzing the reversible reduction of h. to ammonia with a variety of donors ( e.g., methylene blue, flavin). SEE ALSO: NADH-h. reductase.

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hy·drox·yl·amine hī-.dräk-sə-lə-'mēn, .hī-.dräk-'sil-ə-.mēn n a colorless odorless nitrogenous base NH3O that resembles ammonia in its reactions but is less basic and that is used esp. as a reducing agent

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hy·drox·yl·amine (hi″drok-silґə-mēn) an unstable inorganic compound, NH2OH, used as a reducing agent and in organic synthesis.

Medical dictionary. 2011.

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  • Hydroxylamine — Hydroxylamine …   Wikipedia

  • hydroxylamine — [ idrɔksilamin ] n. f. • 1873; de hydroxyle et amine ♦ Chim. Base dérivée de l ammoniac (NH2OH). ● hydroxylamine nom féminin Dérivé hydroxylé de l ammoniac, de formule HO―NH2. (Solide fondant à 33 °C, très soluble dans l eau, l hydroxylamine n… …   Encyclopédie Universelle

  • Hydroxylamine — Hy*drox yl*am ine, n. [Hydroxyl + amine.] (Chem.) A nitrogenous, organic base, {NH2.OH}, resembling ammonia, and produced by a modified reduction of nitric acid. It is usually obtained as a volatile, unstable solution in water. It acts as a… …   The Collaborative International Dictionary of English

  • hydroxylamine — hydroxylamine. См. гидроксиламин. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • hydroxylamine — [hī dräks΄il ə mēn′, hī dräks΄ilam′ēn΄; hī dräks΄il am′in] n. [ HYDROXYL + AMINE] a colorless crystalline base, NH2OH, used as a reducing agent …   English World dictionary

  • hydroxylamine — /huy drok seuh leuh meen , seuhl am in/, n. an unstable, weakly basic, crystalline compound, NH3O, used as a reducing agent, analytical reagent, and chemical intermediate. [1865 70; HYDROXYL + AMINE] * * * ▪ chemical compound       (NH2OH), an… …   Universalium

  • Hydroxylamine — Les hydroxylamines sont les composés dont la formule est NR1R2 OH elles dérivent de l hydroxylamine de formule NH2OH.Les hydroxylamines sont aussi des outils chimique utile pour des coupures spécifique de peptides , ils rompent la liaison entre… …   Wikipédia en Français

  • hydroxylamine- — hidroksilamin statusas T sritis chemija apibrėžtis Ligandas. formulė NH₂OH atitikmenys: angl. hydroxylamine rus. гидроксиламин ryšiai: sinonimas – hidroksazan …   Chemijos terminų aiškinamasis žodynas

  • hydroxylamine — hidroksilaminas statusas T sritis chemija formulė NH₂OH atitikmenys: angl. hydroxylamine rus. гидроксиламин ryšiai: sinonimas – hidroksazanas …   Chemijos terminų aiškinamasis žodynas

  • Hydroxylamine reductase (NADH) — In enzymology, a hydroxylamine reductase (NADH) (EC number|1.7.1.10) is an enzyme that catalyzes the chemical reaction:NH3 + NAD+ + H2O ightleftharpoons hydroxylamine + NADH + H+The 3 substrates of this enzyme are NH3, NAD+, and H2O, whereas its… …   Wikipedia

  • Hydroxylamine oxidase — In enzymology, a hydroxylamine oxidase (EC number|1.7.3.4) is an enzyme that catalyzes the chemical reaction:hydroxylamine + O2 ightleftharpoons nitrite + H2OThus, the two substrates of this enzyme are hydroxylamine and O2, whereas its two… …   Wikipedia

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