N-メチルアニリン

危険有害性情報のコード(GHS)

• 絵表示(GHS)

  

• 注意喚起語

  Danger

• 危険有害性情報

  H319：強い眼刺激

  H373：長期にわたる、または反復暴露により臓器の障 害のおそれ

  H410：長期的影響により水生生物に非常に強い毒性

• 注意書き

  P273：環境への放出を避けること。

  P280：保護手袋/保護衣/保護眼鏡/保護面を着用するこ と。

  P301+P310：飲み込んだ場合：直ちに医師に連絡すること。

  P314：気分が悪い時は、医師の診断/手当てを受けること。

N-メチルアニリン 価格

MSDS Information

• Monomethylaniline

N-メチルアニリン 化学特性,用途語,生産方法

• 外観

  無色～黄色, 澄明の液体

• 溶解性

  エタノール及びアセトンに溶け、水に溶けにくい。

• 用途

  有機合成中間体、各種染料?ゴム薬品?農薬?医薬?爆薬原料

• 化学的特性

  N-Methylaniline is a yellow to light brown oily liquid with a weak, ammonia-like odor. soluble in ethanol, ether, chloroform, slightly soluble in water. Turns reddishbrown if left standing.

• 物理的性質

  Colorless to yellow to pale brown liquid with a faint, ammonia-like odor. Odor threshold concentration is 1.7 ppm (quoted, Amoore and Hautala, 1983).

• 使用

  N-Methylaniline is used as a solvent and in organic synthesis. It is used in the production of cationic brilliant red FG, cationic pink B, reactive yellow brown KGR, etc. in the dye industry. N-methylaniline is an intermediate in the synthesis of the insecticide buprofezin and the herbicide mefenacet.

• 使用

  N-methylaniline was used as raw material, and metal-organic skeleton material CAU-10pydc was used as catalyst to catalyze the reaction of CO₂ with n-methylaniline to produce N-methyl-N-phenylformamide in mild conditions and green solvent acetonitrile^[1]. Poly (N-methylaniline) (PNMA) was prepared by the electrooxidation of N-methylaniline in acidic aqueous solution. PNMA prepared in acidic aqueous solution with different organic solvents and anions had different conductivity. Such as the experimental group added acetonitrile, N, N-dimethylformamide and dimethylsulfoxide, and the experimental group which adding dimethylsulfoxide had the strongest conductivity^[2].
  References:
  [1] Zhiqiang Wang, Chenghua Deng, Xiao Liu, Wenmin Wang, Highly efficient conversion of CO2 into N-formamides catalyzed by a noble-metal-free aluminum-based MOF under mild conditions, 2023, 52, 11163-11167.
  [2] Jun YANO , Hiroko YOSHIKAWA , Tomomi MUKAI , Sumio YAMASAKI , Akira KITANI, Effect of Anions and Added Organic Solvents of Polymerizing Solutions on the Conductivity of Poly (N-methylaniline), 2006, 74, 42-48.

• 定義

  ChEBI: N-methylaniline is a methylaniline that is aniline carrying a methyl substituent at the nitrogen atom. It is a phenylalkylamine, a secondary amine and a methylaniline. It derives from an aniline.

• 製造方法

  N-methylaniline was synthesized by the reaction of aniline with dimethyl sulfate. Dimethyl sulfate was added dropwise to the mixed solution of aniline and water below 10°C, stirred for 1 h, and then added dropwise with 30% sodium hydroxide solution. The upper layer is the organic phase, and the lower layer is extracted with benzene. After the benzene is recovered from the extract, the obtained oil Chemicalbook-like substance is combined with the organic phase to obtain a mixture of aniline, N-methylaniline and N,N-dimethylaniline. The mixture was treated with sulfuric acid, and the aniline formed sulfate crystals which were filtered off. N,N-dimethylaniline can be converted to N-methylaniline by the following reaction.

• 一般的な説明

  Chemical oxidation of N-methylaniline with dichromate (oxidant) has been studied by Raman spectroscopy.

• 危険性

  Toxic by ingestion, inhalation, and skin absorption. Methemoglobinemia and central nervous system impairment.

• 健康ハザード

  Recommended Personal Protective Equipment: Approved respirator; rubber gloves; splash proof goggles; Symptoms Following Exposure: Inhalation causes dizziness and headache. Ingestion causes bluish discoloration (cyanosis) of lips, ear lobes, and fingernail beds. Liquid irritates eyes. Absorption through skin produces same symptoms as for ingestion; General Treatment for Exposure: INHALATION: remove victim to fresh air and call a physician at once; administer oxygen until physician arrives. INGESTION: give large amount of water; get medical attention at once. EYES or SKIN: flush with plenty of water for at least 15 min.; if cyanosis is present, shower with soap and warm water, with special attention to scalp and finger nails; remove any contaminated clothing; Toxicity by Inhalation (Threshold Limit Value): Data not available; Short-Term Inhalation Limits: Data not available; Toxicity by Ingestion: Data not available; Late Toxicity: Data not available; Vapor (Gas) Irritant Characteristics: Data not available; Liquid or Solid Irritant Characteristics: Data not available; Odor Threshold: Data not available.

• 化学反応性

  Reactivity with Water No reaction; Reactivity with Common Materials: May attack some forms of plastic; Stability During Transport: Stable; Neutralizing Agents for Acids and Caustics: Not pertinent; Polymerization: Not pertinent; Inhibitor of Polymerization: Not pertinent.

• 安全性プロファイル

  Poison by ingestion and intravenous routes. Moderately toxic by subcutaneous route. When heated to decomposition it emits toxic fumes of NOx.

• 職業ばく露

  The material is used as an intermediate in organic synthesis, as a solvent and as an acid acceptor

• 発がん性

  N-methyl aniline (1.95 g/kg of food) given together with sodium nitrite (1.0 g/l of drinking water) to Swiss mice resulted in a 17% incidence of lung adenomas and a 14% incidence of malignant lymphomas; there were no carcinogenic effects in animals treated with Nmethyl aniline alone, suggesting that in vivo nitrosation is necessary for forming carcinogenic nitrosamines.
  In bacterial mutagenicity assays N-methyl aniline was negative with or without metabolic activation.

• 環境運命予測

  Soil. Reacts slowly with humic acids or humates forming quinoidal structures (Parris, 1980).

• 輸送方法

  UN2294 N-Methylaniline, Hazard Class: 6.1; Labels: 6.1-Poisonous materials.

• 純化方法

  Dry it with KOH pellets and fractionally distil it under vacuum. Acetylate, and the acetyl derivative is recrystallised to constant melting point (m 101-102o), then hydrolysed with aqueous HCl and distilled from zinc dust under reduced pressure. [Hammond & Parks J Am Chem Soc 77 340 1955, Beilstein 12 IV 241.]

• 廃棄物の処理

  Controlled incineration whereby oxides of nitrogen are removed from the effluent gas by scrubber, catalytic or thermal device.

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