(ブチルチオ)ジチオホスホン酸S,S-ジブチル

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

  H301：飲み込むと有毒

  H310：皮膚に接触すると生命に危険

  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。

  P302+P350：皮膚に付着した場合：多量の水と石鹸で優しく洗うこと。

  P310：ただちに医師に連絡すること。

  P501：内容物/容器を．．．に廃棄すること。

(ブチルチオ)ジチオホスホン酸S,S-ジブチル 価格

(ブチルチオ)ジチオホスホン酸S,S-ジブチル 化学特性,用途語,生産方法

• 外観

  無色〜うすい黄色, 澄明の液体

• 溶解性

  エタノール及びアセトンに溶け、水にほとんど溶けない。

• 農薬用途

  成長調整剤

• 説明

  DEF is a cholinesterase-inhibiting organophosphorus pesticide compound used as a cotton defoliant that was registered in 1960.DEF is a colorless to pale-yellow transparent liquid with a skunk-like odor.It is completely miscible with n-hexane, dichloromethane, toluene, and 2-propanol and has an octanol–water partition coefficient of 3.31×10⁵ at 25°C. DEF toxicity is primarily attributed to inhibition of various esterases, including acetylcholinesterase (AChE), butyrylcholinesterase (BuChE), neuropathic target esterase (NTE), and carboxylesterase, resulting in increased accumulation of endogenous acetylcholine (ACh) in cholinergic nerve terminals and related effector organs.

• 化学的特性

  Tribufos is a colorless to yellow liquid. Tribufos is relatively stable to acids and heat and is hydrolyzed slowly under alkaline conditions. Tribufos has a mercaptan or skunk-like odor. Tribufos has a mercaptan or skunk-like odor. Practically insoluble in water (2.3×10^-4 g/ 100 mL); completely miscible in dichloromethane, n-hexane, 2-propanol, toluene.

• 使用

  1,2,4-Tributylphosphorotrithioate is a defoliant for cotton.

• 一般的な説明

  Colorless to pale yellow liquid with mercaptan-like odor. Insoluble in water; soluble in aliphatic, aromatic, and chlorinated hydrocarbons.. Used as a growth regulator.

• 空気と水の反応

  Insoluble in water. Hydrolyzed slowly by alkaline conditions.

• 反応プロフィール

  An organophosphate derivative. Organophosphates are susceptible to formation of highly toxic and flammable phosphine gas in the presence of strong reducing agents such as hydrides. Partial oxidation by oxidizing agents may result in the release of toxic phosphorus oxides.

• 危険性

  Cholinesterase inhibitor.

• 农业用途

  Herbicide, Defoliant, Plant growth regulator: Tribufos is an organophosphate defoliant used for cotton crops. It is specifically used to defoliate cotton in preparation for machine harvesting. It was first registered in the United States in 1961. Not approved for use in EU countries . Registered for use in the U.S.

• 製品名

  B-1776®; BUTIFOS®; BUTIPHOS®[C]; CHEMAGRO® 1776; CHEMAGRO® B-1776; DE- GREEN®; DEF®; DEF DEFOLIANT®; DELEAFDEFOLIANT®; EASY OFF®-D; E-Z-OFF® D; FOLEX® 6EC FOS-FALL® A; ORTHO® phosphate defoliant

• 安全性プロファイル

  A poison by ingestion, skin contact, and intraperitoneal routes. Experimental reproductive effects. Animal experiments show an anti-cholinesterase effect. When heated to decomposition it emits toxic fumes of PO, and SO,. See also PARATHION, PHOSPHATES, ESTERS, and SULFATES.

• 発がん性

  No carcinogenic effects occurred when rats were given diets with 0, 4, 40, or 320 ppm tribufos (equivalent to 0.0, 0.2, 1.8, and 16.8 mg/kg/day in males and 0.0, 0.2, 2.3, and 21.1 mg/kg/day in females, respectively) for 2 years .
  In a carcinogenicity study, mice were fed diets containing tribufos at doses of 0, 10, 50, or 250 ppm (equivalent to 0.0, 1.64, 8.28, or 48.02 mg/kg/day in males and 0.0, 2.08, 11.14, or 63.4 mg/kg/day in females) for 90 weeks . Carcinogenic effects were evident at 250 ppm (48.02 mg/kg/day in males and 63.4 mg/kg/day in females). Males exhibited a statistically significant increase in hemangiosarcomas and adenocarcinomas of the small intestines and females exhibited a statistically significant increase in alveolar/bronchiolar adenomas.

• 環境運命予測

  Soil. Hydrolyzes in soil to ethyl mercaptan, carbon dioxide and diisobutylamine (Hartley and Kidd, 1987). Butylate is probably subject to degradation of soil microorganisms. It was reported that butylate may degrade via hydrolysis of the ester linkage forming the corresponding mercaptan (ethyl mercaptan), alkylamine (diisobutylamine) and carbon dioxide. Transthiolation and oxidation of the mercaptan forms the alcohol which may further oxidize to afford a metabolic pool (Kaufman, 1967). Somasundaram and Coats (1991) reported butylate in soils is oxidized to the corresponding sulfoxide. The reported half-life in soil is approximately 1.5–10 weeks (Worthing and Hance, 1991). The reported half-life of butylate in a loam soil at 21–27°C was 3 weeks (Humburg et al., 1989). Residual activity in soil is limited to approximately 4 months (Hartley and Kidd, 1987).
  Groundwater. According to the U.S. EPA (1986) butylate has a high potential to leach to groundwater.
  Plant. In plants, butylate is metabolized to carbon dioxide, diisobutylamine, fatty acids, conjugates of amines and other compounds (Hartley and Kidd, 1987; Humburg et al., 1989).

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