paraldehyde

/peuh ral"deuh huyd'/, n. Chem., Pharm.
a colorless, liquid, cyclic compound, C6H12O3, having a disagreeable taste but an agreeable odor, produced by the polymerization of acetaldehyde with sulfuric acid: used chiefly in the manufacture of organic chemicals and in medicine as a sedative and hypnotic. Also called paracetaldehyde.
[1855-60; PAR- + ALDEHYDE]

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also called  paracetaldehyde 

      colourless liquid of disagreeable taste and pungent odour used in medicine as a sedative–hypnotic drug and in chemistry in the manufacture of organic chemicals. When administered as a medicine, it is largely excreted by the lungs and gives an unpleasant odour to the breath. It is most useful for recalcitrant cases and is an older drug for treatment of acute alcoholic dementia.

      Paraldehyde is produced for commerce by polymerizing acetaldehyde with a trace of sulfuric acid; the resulting liquid is then neutralized with calcium carbonate and purified by fractional distillation. Paraldehyde boils at 124° C (255° F) and melts at a temperature of 12.5° C (54.5° F).

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Universalium. 2010.

Look at other dictionaries:

  • Paraldehyde — Paraldéhyde Paraldéhyde Général Nom IUPAC …   Wikipédia en Français

  • Paraldéhyde — Général Nom IUPAC 2,4,6 tri …   Wikipédia en Français

  • Paraldehyde — Par*al de*hyde, n. [Pref. para + aldehyde.] (Chem.) A trimer of acetaldehyde ({C6H12O3}), prepared by polymerization of acetaldehyde with hydrochloric and sulfuric acids. It has sedative and hypnotic properties. MI11 [PJC] …   The Collaborative International Dictionary of English

  • paraldéhyde — ● paraldéhyde nom masculin Composé C6H12O3 obtenu par trimérisation de l acétaldéhyde. (Liquide bouillant à 125 °C, il est employé comme source d acétaldéhyde en synthèse organique.) …   Encyclopédie Universelle

  • paraldehyde — [pə ral′də hīd΄] n. [ PAR(A) + ALDEHYDE] a colorless liquid, C6H12O3, produced by the polymerization of acetaldehyde, having a strong, nauseating smell and used in medicine as a hypnotic and sedative …   English World dictionary

  • Paraldehyde — Drugbox IUPAC name = 2,4,6 trimethyl 1,3,5 trioxane width = 178 CAS number=123 63 7 ATC prefix=N05 ATC suffix=CC05 ATC supplemental= PubChem=31264 DrugBank= C=6 | H=12 | O=3 molecular weight = 132.16 bioavailability= metabolism = elimination half …   Wikipedia

  • paraldehyde — paraldehidas statusas T sritis chemija apibrėžtis Heterociklinis acetaldehido trimeras. formulė (CH₃CHO)₃ atitikmenys: angl. paracetaldehyde; paraldehyde rus. паральдегид; парацетальдегид ryšiai: sinonimas – paracetaldehidas sinonimas – 2,4,6… …   Chemijos terminų aiškinamasis žodynas

  • paraldehyde — noun Date: 1857 a colorless liquid polymer C6H12O3 derived from acetaldehyde and used especially as an anticonvulsant, sedative, and hypnotic …   New Collegiate Dictionary

  • paraldehyde — noun A cyclic trimer of acetaldehyde once used as an antidepressant …   Wiktionary

  • paraldehyde — (CH3CHO)3; a cyclic polymer of acetaldehyde; a potent hypnotic sedative, and anticonvulsant suitable for oral, rectal, intravenous, and intramuscular administration; its offensive …   Medical dictionary

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