2,4-ジニトロフェニルヒドラジン

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

  H302：飲み込むと有害

• 注意書き

  P210：熱/火花/裸火/高温のもののような着火源から遠ざ けること。－禁煙。

  P230：．．．にて湿らせておくこと。

  P233：容器を密閉しておくこと。

  P280：保護手袋/保護衣/保護眼鏡/保護面を着用するこ と。

  P370+P380+P375：火災の場合：区域より退避させ、爆発の危険性に応 じ、離れた距離から消火すること。

  P501：内容物/容器を．．．に廃棄すること。

2,4-ジニトロフェニルヒドラジン 価格

2,4-ジニトロフェニルヒドラジン 化学特性,用途語,生産方法

• 外観

  黄赤色, 結晶性粉末～粉末

• 溶解性

  水に難溶, エタノールに微溶。水に極めて溶けにくく、エタノールに溶けにくい。硫酸(1+1)に溶ける。

• 解説

  C6H6N4O4(198.14)．2,4-ジニトロクロロベンゼンとヒドラジンとをエタノール中でアルカリ存在下に縮合させると得られる．"赤色の結晶．融点194 ℃．エタノール，酢酸エチルなどに熱時可溶，エーテル，クロロホルム，ベンゼンに難溶．カルボニル化合物と反応して，結晶性のよい2,4-ジニトロフェニルヒドラゾンをつくるので，カルボニル化合物の確認試薬として使われる．[CAS 119-26-6]
  森北出版「化学辞典（第2版）

• 説明

  2,4-Dinitrophenylhydrazine (abbreviated 2,4-DNP for short) is the chemical compound C6H3 (NO2) 2NHNH2, and it is often used to qualitatively test for carbonyl groups associated with aldehydes and ketones. The hydrazone derivatives can also be used as evidence toward the identity of the original compound. It is relatively sensitive to shock and friction; it is a shock explosive, so care must be taken with its use. To reduce its explosive hazard, it is usually supplied wet.
  2,4-Dinitrophenylhydrazine is a compound with a benzene ring, two Nitro groups, and a hydrazine (two nitrogen atoms bonded directly to each other) functional group. It is used as a Brady's reagent to test the existing of a ketone or aldehyde.

• 化学的特性

  white to light yellow crystal powde

• 使用

  2,4-Dinitrophenylhydrazine is known was Brady's reagent, a substituted hydrazine that is often used for qualitative testing of carbonyl groups associated with aldehydes and ketones.

• 定義

  ChEBI: 2,4-dinitrophenylhydrazine is a C-nitro compound that is phenylhydrazine substituted at the 2- and 4-positions by nitro groups. It has a role as a reagent. It is a member of phenylhydrazines and a C-nitro compound.

• 一般的な説明

  2,4-Dinitrophenylhydrazine (DNPH), a hydrazine derivative, is a potential mutagenic agent. Its molecular and crystal structure has been analyzed. The intra- and intermolecular hydrogen bonds in DNPH have been investigated by vibrational spectroscopic analysis. The mechanism of isothermal degradation of DNPH has been studied by differential scanning calorimetry (DSC).

• 危険性

  2,4-Dinitrophenylhydrazine [119-26-6] is a flammable solid, which must be kept moist and is harmful if swallowed, inhaled, or absorbed through the skin. Concentrated sulfuric acid [7664-93-9] is poisonous and corrosive. Its mist can cause severe burns to all body tissue. It may be fatal if swallowed or by skin contact. It is harmful if inhaled and may cause cancer. Ethanol [64-17-5] is flammable and should be kept from ignition sources. Eye and face protection, protective clothing, and gloves must be worn.

• 純化方法

  Crystallise DNPH from butan-1-ol, dioxane, EtOH, *C6H6 or EtOAc. The hydrochloride has m 186o (dec). [Beilstein 15 IV 380.]

• 参考文献

  1. SOME LIMITATIONS OF 2,4-DINITROPHENYLHYDRAZINE AS A REAGENT FOR CARBONYL GROUPS. DOI:10.1021/JO01226A003
  2. Linstromberg, W. W.; Baumgarten, H. E. Organic Experiments, 6th ed.; Houghton Mifflin: Boston, 2002; p 175. Shriner, R. L.; Hermann, C. K. F.; Morrill, T. C.; Curtin, D. Y.; Fuson, R. C. The Systematic Identification of Organic Compounds, 8th ed.; Wiley; Hoboken, NJ, 2004; pp 278–279.
  3. An Improved Preparation of 2,4-Dinitrophenylhydrazine Reagent. DOI:10.1021/ED082P1310.2

2,4-ジニトロフェニルヒドラジン 上流と下流の製品情報

2,4-ジニトロフェニルヒドラジン 生産企業

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2,4-ジニトロフェニルヒドラジン スペクトルデータ(¹HNMR、IR1、IR2、MS、Raman)

119-26-6, 2,4-ジニトロフェニルヒドラジン キーワード