N,N-ジメチルチオカルバミン酸S-(4-フェノキシブチル)

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

  H400：水生生物に強い毒性

• 注意書き

  P273：環境への放出を避けること。

N,N-ジメチルチオカルバミン酸S-(4-フェノキシブチル) 価格

N,N-ジメチルチオカルバミン酸S-(4-フェノキシブチル) 化学特性,用途語,生産方法

• 外観

  白色, 結晶～結晶性粉末

• 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

  ダニ駆除剤

• 使用

  Fenothiocarb is an acaricide used to control the eggs and young stages of Panonychus citri, Panonychus ulmi and other Panonychus spp.

• 代謝経路

  When the red mite, applied with 14C-fenothiocarb by the contact method, metabolizes fenothiocarb, resulting in several metabolites via the primary oxidation of the N-methyl moiety. The photodegradation of fenothiocarb on silica gel plate exposed to sunlight gives rise to several degradation products. A primary photochemical reaction seems to be the oxidation of the sulfur atom to form its sulfoxide. Under greenhouse conditions, when fenothiocarb is applied to the citrus trees, the major metabolites identified in the leaves, rinds, and edible fruit are 6-O-malonyl-b-D-glucosode of N- hydroxymethyl fenothiocarb, N-formylfenothiocarb, and glucoside conjugate of phenol (not shown in the map), respectively. In soils, fenothiocarb is more rapidly degraded under upland conditions than under flooded conditions. Main degradation pathways include oxidation of the sulfur atom which results in the formation of methyl-4-phenoxybutylsulfoxide, its sulfone, and 4-phenoxybutylsulfonic acid.

• Degradation

  Fenothiocarb has long residual activity. It is stable to hydrolysis for 5 days (pH 5-9, 40 °C) but it is decomposed slowly by sunlight (PM). [U-¹⁴C-phenyl]Fenothiocarb was applied to the origin of silica gel TLC plates and exposed to sunlight in September or October. The plates were developed, with authentic standard compounds also applied, in two dimensions using different solvent systems. After 72 hours exposure to sunlight, 34% of parent fenothiocarb remained (DT₅₀ 45 hours). Twelve photoproducts were detected. Products that were identified are illustrated in Scheme 1 and were N-formyl-fenothiocarb (2), desmethyl-fenothiocarb (3) the bis(4-phenoxybutyl) thiolsulfinate (4), the bis(4-phenoxybutyl) thiolsulfonate (5), the sulfoxide derivative (6) and 4-phenoxybutanesulfonic acid (7). The latter two compounds were major products. The primary photochemical reaction was oxidation of sulfur to form fenothiocarb sulfoxide (6) followed by cleavage of the ester linkage and the oxidation or dimerisation of the 4-phenoxybutanesulfenic acid intermediate. The second main route of photodegradation was oxidation of the N-methyl moiety of fenothiocarb (Unai and Tomiwaza, 1986b).

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