4-クロロベンズヒドロール

危険有害性情報のコード(GHS)

• 絵表示(GHS)

  

• 注意喚起語

  Warning

• 危険有害性情報

  H412：長期的影響により水生生物に有害

• 注意書き

  P273：環境への放出を避けること。

  P501：内容物/容器を．．．に廃棄すること。

4-クロロベンズヒドロール 価格

4-クロロベンズヒドロール 化学特性,用途語,生産方法

• 外観

  白色～うすい黄色、結晶～結晶性粉末

• 用途

  有機合成原料。

• 化学的特性

  white crystalline powder

• 使用

  4-Chlorobenzhydrol was used as internal standard to measure the N-demethyl antipyrine metabolite in urine by gas chromatography-mass spectrometry. It was also used in the identification of the antihistamine cetirizine as a relevant cross-reactant for the carbamazepine-specific enzyme-linked immunosorbent assay .

• 製造方法

  Preparation of 4-Chlorobenzhydrol(4-CB):
  about 5.0g(0.023 mol) of 4-chloro benzophenone was dissolved in 15 mL of isopropyl alcohol (IPA) and heated to 50°C followed by the addition of 0.265g(0.007 mol) of sodium borohydride as a lot with the temperature maintained at 65°C for 2 h. The reaction mixture was distilled to expel isopropyl alcohol up to 90 %. The resulting solution was cooled and treated with dil HCl (5 mL of conc. HCl in 20 mL of water). Finally the reaction mass was extracted with 15 mL of toluene. The toluene extract was washed withwater to pH-7. The compound obtained in this step was taken to next step without isolation but aliquot sample was concentrated, isolated and checked for melting point (m.p. = 58-60°C).

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4-クロロベンズヒドロール 生産企業

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4-クロロベンズヒドロール スペクトルデータ(¹HNMR、¹³CNMR、IR1、IR2、MS、Raman)

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