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Fiche 1,  Justifications,  Anglais

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An off-white to pale yellow heterocyclic organic compound formed by replacing the hydrogen in position 4(or 5) of imidazole by a methyl group.  5, fiche 1, Anglais, - 4%2Dmethylimidazole

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4-methylimidazole (4-MEI) is a compound used to make certain pharmaceuticals, photographic chemicals, dyes and pigments, cleaning and agricultural chemicals, and rubber products. 4-MEI is formed during the production of certain caramel coloring agents used in many food and drink products. It may also be formed during the cooking, roasting, or other processing of some foods and beverages. ... Studies published in 2007 by the [U.S.] federal government’s National Toxicology Program showed that long-term exposure to 4-MEI resulted in increases in lung cancer in male and female mice. These findings were the basis for the addition of 4-MEI to California’s Proposition 65 list of carcinogens.  6, fiche 1, Anglais, - 4%2Dmethylimidazole

Record number: 1, Textual support number: 2 CONT

2-methylimidazole and 4-methylimidazole are intermediate/starting materials or components in the manufacture of pharmaceuticals, photographic and photothermographic chemicals, dyes and pigments, agricultural chemicals, and rubber. These chemicals have been identified as undesirable by-products in several foods and have been detected in mainstream and sidestream tobacco smoke. The National Cancer Institute nominated 2- and 4-methylimidazole as candidates for toxicity and carcinogenicity studies. Toxicity studies were carried out in male and female F344/N rats and ...  7, fiche 1, Anglais, - 4%2Dmethylimidazole

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Concern has arisen about the presence of 4-MEI in caramel color (which is the most-used food and beverage coloring) ... Dark beers and common brands of cola drinks may contain ...  2, fiche 1, Anglais, - 4%2Dmethylimidazole

Record number: 1, Textual support number: 4 CONT

... Since imidazole also exists in tautomeric forms, either of the nitrogen atoms can bear the hydrogen atom, the two nitrogens become indistinguishable and the numbering becomes rather complex for mono-substituted imidazoles. As a consequence of this, 4-methylimidazole is identical with 5-methylimidazole and, depending on the position of the imino hydrogen, such a compound may be designated either 4- or 5-methylimidazole. As only one substance that may be a single tautomer or an equilibrium mixture is known, it would be incorrect to call it eithier 4- or 5-methylimidazole. Such a compound is instead designated as 4(5)-methylimidazole.  8, fiche 1, Anglais, - 4%2Dmethylimidazole

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4(5)-methylimidazole; 4(or 5)-methylimidazole; 5-methylimidazole; 5-methyl-1H-imidazole: 4-methylimidazole and 5-methylimidazole are tautomers (structural isomers that are readily interconvertible) and are therefore usually considered to be synonymous (i.e. considered to be the same chemical compound). They have the same molecular formula and CAS Registry Number (CAS: Chemical Abstracts Service).  5, fiche 1, Anglais, - 4%2Dmethylimidazole

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Chemical formulas: C₄H₆N₂ or H₃C-C₃H₃N₂  5, fiche 1, Anglais, - 4%2Dmethylimidazole

Fiche 1,  Justifications,  Français

Record number: 1, Textual support number: 1 DEF

Composé chimique hétérocyclique de couleur blanc cassé à jaune pâle, formé en remplaçant l'hydrogène en position 4 (ou 5) de l'imidazole par un groupe méthyle.  4, fiche 1, Français, - 4%2Dm%C3%A9thylimidazole

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Considéré comme étant probablement cancérigène, on retrouve ce produit lors de la fabrication de colorants caramel présents dans beaucoup d'aliments et de boissons (p. ex. boissons à base de cola, bières brunes) et à la suite du rôtissage d'aliments (p. ex. café et viande).  4, fiche 1, Français, - 4%2Dm%C3%A9thylimidazole

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Il sert à fabriquer des produits pharmaceutiques, des produits pour le nettoyage, des produits utilisés en photographie et en agriculture, des teintures et des pigments, et des produits à base de caoutchouc.  4, fiche 1, Français, - 4%2Dm%C3%A9thylimidazole

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4(ou 5)-méthylimidazole; 5-méthyl-1H-imidazole; 5-méthylimidazole : Le 4-méthylimidazole et le 5-méthylimidazole sont des tautomères (isomères interconvertibles) et sont donc souvent considérés comme étant le même composé chimique.  4, fiche 1, Français, - 4%2Dm%C3%A9thylimidazole

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méthyl-4 iminazole : «Imidazole» s'écrit également «iminazole».  5, fiche 1, Français, - 4%2Dm%C3%A9thylimidazole

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Formules chimiques : C₄H₆N₂ ou H₃C-C₃H₃N₂ ou CH₃-C₃H₃N₂  4, fiche 1, Français, - 4%2Dm%C3%A9thylimidazole

Fiche 1,  Justifications,  Espagnol

Fiche 2,  Justifications,  Anglais

Record number: 2, Textual support number: 1 DEF

The simplest member of a class of unsaturated aldehydes in the form of a yellow, irritant, pungent liquid, that is used in making plastics, perfumes, as a warning agent in methyl chloride refrigerant, in organic synthesis and for aquatic herbicides.  7, fiche 2, Anglais, - prop%2D2%2Denal

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prop-2-enal: form recommended by the IUPAC (International Union of Pure and Applied Chemistry) for the systematic name corresponding to the CAS number indicated on the present record.  1, fiche 2, Anglais, - prop%2D2%2Denal

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acrolein: term adopted by Environment Canada; used in the list of pollutants measured in the National Air Pollution Surveillance Network (NAPS).  7, fiche 2, Anglais, - prop%2D2%2Denal

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trans-: This prefix must be italicized.  1, fiche 2, Anglais, - prop%2D2%2Denal

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Also known under a large number of commercial designations, among which: Acquinite; Aqualine; Biocide; Crolean; Magnacide; NSC-8819; RCRA waste number P003; Slimicide; UN 1092.  7, fiche 2, Anglais, - prop%2D2%2Denal

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Chemical formula: C₃H₄O or CH₂=CHC(O)H or CH₂CH-CHO or CH₂=CH-CH=O  7, fiche 2, Anglais, - prop%2D2%2Denal

Fiche 2,  Justifications,  Français

Record number: 2, Textual support number: 1 DEF

Composé qui constitue le prototype des aldéhydes éthyléniques conjugués, qui doit son nom à son odeur et à son caractère lacrymogène, qui se présente sous la forme d'un liquide incolore utilisé dans les gaz de combat, les désinfectants, les colorants, les accélérateurs de vulcanisation, les parfums synthétiques et les herbicides pour plantes aquatiques.  10, fiche 2, Français, - prop%2D2%2D%C3%A9nal

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prop-2-énal : forme recommandée par l'UICPA (Union internationale de chimie pure et appliquée) pour le nom systématique correspondant au numéro CAS indiqué sur la présente fiche.  2, fiche 2, Français, - prop%2D2%2D%C3%A9nal

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acroléine : terme retenu par Environnement Canada; utilisé dans la liste des polluants mesurés par le Réseau national de surveillance de la pollution atmosphérique (RSNPA).  10, fiche 2, Français, - prop%2D2%2D%C3%A9nal

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trans- : Ce préfixe s'écrit en italique.  2, fiche 2, Français, - prop%2D2%2D%C3%A9nal

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Formule chimique : C₃H₄O ou CH₂=CHC(O)H ou CH₂CH-CHO ou CH₂=CH-CH=O  10, fiche 2, Français, - prop%2D2%2D%C3%A9nal

Fiche 2,  Justifications,  Espagnol

Record number: 2, Textual support number: 1 OBS

Líquido incoloro o amarillento de olor desagradable. Soluble en agua, alcohol y éter. Muy tóxico por inhalación e ingestión. Fuerte irritante de los ojos y de la piel. Inflamable, riesgo de incendio.  3, fiche 2, Espagnol, - acrole%C3%ADna

Record number: 2, Textual support number: 2 OBS

Fórmula química: C₃H₄O o CH₂=CHC(O)H o CH₂CH-CHO o CH₂=CH-CH=O  4, fiche 2, Espagnol, - acrole%C3%ADna

Fiche 3,  Justifications,  Anglais

Record number: 3, Textual support number: 1 DEF

An azo dye which appears under the form of yellow crystalline leaflets, is soluble in alcohol, ether, strong mineral acids and oils, is insoluble in water, is derived by the action of benzenediazonium chloride on dimethyl aniline, is toxic by inhalation and by skin absorption, is carcinogenic, was formerly used in coloring butter and oils but may not be used anymore in foods or beverages, and which is used as a chemical indicator, in dyes, and in organic research.  14, fiche 3, Anglais, - N%2CN%2Ddimethyl%2D4%2D%28phenyldiazenyl%29aniline

Record number: 3, Textual support number: 1 OBS

N-: This prefix must be italicized.  1, fiche 3, Anglais, - N%2CN%2Ddimethyl%2D4%2D%28phenyldiazenyl%29aniline

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The prefixes "ortho-," "meta-" and "para-," along with their corresponding abbreviations ("o-," "m-" and "p-"), appear in italics and are ignored in alphabetizing. According to the actual chemical nomenclature rules in organic chemistry (in 2003), the numbers designating the positions of the disubstitution groups (1,2- for "ortho-," 1,3- for "meta-" and 1,4- for "para-") are to be preferred to the symbols "o-," "m-" and "p-." Furthermore, the prefixes "ortho-," "meta-" and "para-" should not be used anymore, and their corresponding abbreviations ("o-," "m-," and "p-") will soon be judged to be avoided, if not totally condemned.  1, fiche 3, Anglais, - N%2CN%2Ddimethyl%2D4%2D%28phenyldiazenyl%29aniline

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DAB; DMAB; P.D.A.B.: These might be in-house or non-recognized abbreviations; not to be used alone, to avoid any risk of confusion.  1, fiche 3, Anglais, - N%2CN%2Ddimethyl%2D4%2D%28phenyldiazenyl%29aniline

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Chemical formula: C₆H₅NNC₆H₄N(CH₃)₂ or C₁₄H₁₅N₃  14, fiche 3, Anglais, - N%2CN%2Ddimethyl%2D4%2D%28phenyldiazenyl%29aniline

Fiche 3,  Justifications,  Français

Record number: 3, Textual support number: 1 DEF

Composé azoïque [...] préparé à partir du chlorure de benzènediazonium et de la diméthylaniline [qui] a servi de colorant jaune pour les corps gras alimentaires (jaune de beurre), jusqu'à la découverte de ses propriétés carcinogènes, [et qui a pour caractéristique d'être] un indicateur coloré, rouge en dessous de PH 3, jaune au-dessus de PH 4 [...]  4, fiche 3, Français, - N%2CN%2Ddim%C3%A9thyl%2D4%2D%28ph%C3%A9nyldiaz%C3%A9nyl%29aniline

Record number: 3, Textual support number: 1 OBS

N- : Ce préfixe s'écrit en italique.  1, fiche 3, Français, - N%2CN%2Ddim%C3%A9thyl%2D4%2D%28ph%C3%A9nyldiaz%C3%A9nyl%29aniline

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Les préfixes de position «ortho-», «méta-» et «para-», tout comme les abréviations correspondantes «o-», «m-» et «p-», s'écrivent en italique et n'interviennent pas dans une classification par ordre alphabétique. Selon les règles de nomenclature de chimie organique en vigueur aujourd'hui (en 2003), il est recommandé d'utiliser les chiffres 1,2-, 1,3- et 1,4-, respectivement. Les préfixes «ortho-», «méta-» et «para-» ne doivent plus être utilisés. L'usage des symboles correspondants («o-», «m-» et «p-») sera bientôt fortement déconseillé, sans être exclu.  1, fiche 3, Français, - N%2CN%2Ddim%C3%A9thyl%2D4%2D%28ph%C3%A9nyldiaz%C3%A9nyl%29aniline

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Formule chimique : C₆H₅NNC₆H₄N(CH₃)₂ ou C₁₄H₁₅N₃  5, fiche 3, Français, - N%2CN%2Ddim%C3%A9thyl%2D4%2D%28ph%C3%A9nyldiaz%C3%A9nyl%29aniline

Fiche 3,  Justifications,  Espagnol

Record number: 3, Textual support number: 1 OBS

Sólido cristalino amarillo. Soluble en alcohol, éter, ácidos minerales fuertes y aceites; insoluble en agua. Probablemente tóxico.  1, fiche 3, Espagnol, - dimetilaminoazobenceno

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Fórmula química: C₆H₅NNC₆H₄N(CH₃)₂ o C₁₄H₁₅N₃  2, fiche 3, Espagnol, - dimetilaminoazobenceno

Fiche 4,  Justifications,  Anglais

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A type of fermentation carried out by members of the family Enterobacteriaceae in which ethanol and a complex mixture of organic acids are produced.  3, fiche 4, Anglais, - mixed%20acid%20fermentation

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formic acid fermentation: In our view, this term is not a synonym of "mixed acid fermentation" but a specific. See the following context.  4, fiche 4, Anglais, - mixed%20acid%20fermentation

Record number: 4, Textual support number: 1 CONT

Methyl Red Voges Proskauer Test(MR-VP)-differentiates members of family Enterobacteriaciae based on ability to produce acid end products from fermentation of glucose. Enterobacteriaciae divided into two groups based on type of formic acid fermentation performed. 1.) Mixed acid type formic acid fermentation-results in production of ethanol and lactic, acetic, succinic, and formic acids as fermentation end products. If mixed acid fermentor, then when Methyl Red added to inoculated broth, medium turns red. If butanediol fermentor, then the color of the medium will change to yellow. Butanediol fermentor yields orange/yellow color after addition methyl red. 2.) Butanediol fermentors produce acidic fermentation products.  5, fiche 4, Anglais, - mixed%20acid%20fermentation

Fiche 4,  Justifications,  Français

Record number: 4, Textual support number: 1 CONT

La fermentation acide mixte [...], réalisée par des entérobactéries, est caractérisée par la production d'éthanol et de plusieurs acides organiques : acide lactique, acide acétique, acide succinique, acide formique. Certaines bactéries (Escherichia coli) possèdent l'hydrogène lyase formique et décomposent immédiatement l'acide formique en hydrogène et gaz carbonique.  2, fiche 4, Français, - fermentation%20acide%20mixte

Fiche 4,  Justifications,  Espagnol

Fiche 5,  Justifications,  Français

Fiche 5,  Justifications,  Espagnol