3-tert-ブチル-5-クロロ-6-メチルウラシル

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

  H302：飲み込むと有害

• 注意書き

  P264：取扱い後は皮膚をよく洗うこと。

  P264：取扱い後は手や顔をよく洗うこと。

  P270：この製品を使用する時に、飲食または喫煙をしないこ と。

  P501：内容物/容器を．．．に廃棄すること。

3-tert-ブチル-5-クロロ-6-メチルウラシル 価格

MSDS Information

• 3-tert-Butyl-5-chloro-6-methylpyrimidine-2,4(1H,3H)-dione

3-tert-ブチル-5-クロロ-6-メチルウラシル 化学特性,用途語,生産方法

• 外観

  白色の結晶性粉末

• 溶解性

  アセトンに溶け、水にほとんど溶けない。

• 用途

  ターバシル試験用標準品。

• 農薬用途

  除草剤

• 化学的特性

  Colorless crystals. Mp 175C. Soluble in dimethylacetamide and cyclohexanone; partially soluble in xylene and butyl acetate.

• 使用

  Terbacil is also absorbed by plant roots and inhibits photosynthesis. It is used for the selective control of many annual and some perennial weeds in apples, citrus, peaches, and sugarcane. Application rates range from 0.5 to 8 kg/ha.

• 一般的な説明

  Colorless crystals. Non corrosive. Used as an herbicide.

• 空気と水の反応

  Water soluble.

• 反応プロフィール

  A uracil derivative.

• 农业用途

  Herbicide: Terbacil is a selective herbicide that treats a broad spectrum of broadleaf weeds and grasses. It is formulated as a wettable powder and is applied by aircraft or ground equipment on terrestrial food and feed crops (e.g., apples, mint/peppermint/spearmint, sugarcane, and ornamentals), forestry [e.g., cottonwood (forest/shelterbelt)], terrestrialfood (e.g., asparagus, blackberry, boysenberry, dewberry, loganberry, peach, raspberry, youngberry and strawberry), and terrestrial feed (e.g., alfalfa, sainfoin (hay and fodder), and forage). Not approved for use in EU countries. Registered for use in the U.S.

• 製品名

  COMPOUND® 732; DuPontTM® 732; EXPERIMENTAL HERBICIDE 732; GEONTER®; SINBAR®; TURBSVIL®; ZOBAR®[C]

• 環境運命予測

  Soil. In microbially active soils, tebuthiuron is degraded via demethylation. The average half-life in soil 12–15 months in areas receiving 60 inches of rainfall a year (Humburg et al., 1989).
  Groundwater. According to the U.S. EPA (1986) terbacil has a high potential to leach to groundwater.
  Plant. The major degradation products of [2-14C]terbacil identified in alfalfa using a mass spectrometer were (% of applied amount): 3-tert-butyl-5-chloro-6-hydroxymethyluracil (11.9) and 6-chloro-2,3-dihydro-7-(hydroxymethyl)-3,3-dimethyl-5H-oxa
  Photolytic. Acher et al. (1981) studied the dye-sensitized photolysis of terbacil in aerated aqueous solutions over a wide pH range. After a 2-hour exposure to sunlight, terbacil in aqueous solution (pH range 3.0–9.2) in the presence of methylene blue (3 ppm) or riboflavin (10 ppm), decomposed to 3-tert-5-butyl-5-acetyl-5-hydroxyhydantoin. Deacylation was observed under alkaline conditions (pH 8.0 or 9.2) affording 3-tert-5- hydroxyhydantoin. In neutral or acidic conditions (pH 6.8 or 3.0) containing riboflavin, a mono-N-dealkylated terbacil dimer and an unidentified water-soluble product formed. Product formation, the relative amounts of products formed and the rate of photolysis were found to be all dependent upon pH, sensitizer, temperature and time (Acher et al., 1981).
  Chemical/Physical. Stable in water (Worthing and Hance, 1991).

• 代謝経路

  When rats are administered terbacil orally, the primary biotransformation products of terbacil in the urine are derived from hydroxylation of the 6-methyl group and are identified as the aglycone, glucuronide, and sulfate. The other conjugated metabolite is the mercapturic acid conjugate of the 6-methyl substituent. Minor metabolites are identified as sulfoxides and sulfone at the 6-methyl substituent of terbacil.

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