Basic information Safety Related Supplier


Basic information Safety Related Supplier
DIENOCHLOR Basic information
DIENOCHLOR Chemical Properties
  • Melting point:122-123℃
  • Boiling point:547.24°C (rough estimate)
  • Density 1.8769 (rough estimate)
  • vapor pressure 2.9 x 10-4 Pa (25 °C)
  • refractive index 1.6000 (estimate)
  • form neat
  • Water Solubility 0.025 mg l-1
  • Merck 13,3131
  • BRN 2064747
  • EPA Substance Registry SystemDienochlor (2227-17-0)
Safety Information
  • Hazard Codes Xn
  • Risk Statements 22
  • Safety Statements 22-24
  • RIDADR 2761
  • WGK Germany 3
  • RTECS DT8225000
  • HazardClass 6.1(a)
  • PackingGroup I
  • Hazardous Substances Data2227-17-0(Hazardous Substances Data)
  • ToxicityAcute oral LD50 for male albino rats >3.16 g/kg, bobwhite quail 705 mg/kg (Worthing and Hance, 1991).
DIENOCHLOR Usage And Synthesis
  • UsesMiticide.
  • UsesAcaricide used for control of mites on ornamentals.
  • UsesDienochlor is used for the control of mites (Tetrunychus spp., Panonychus ulmi and Polyphagotarsonemus latus) on roses, Chrysanthemums and other ornamentals.
  • Environmental FatePlant. On plants, dienochlor was converted by sunlight to form perchloro ketones (Quistad and Mulholland, 1983).
    Chemical/Physical. Dienochlor is unstable when exposed to sunlight. When dienochlor applied as a thin ?lm on glass plates was exposed to sunlight, nonpolar products, a tricyclic chlorocarbon and 3 isomeric perchloro ketones were formed at yields
    Dienochlor begins to decompose at 130°C (Worthing and Hance, 1991).
  • Metabolic pathwayDienochlor is readily degraded in sunlight to many products, only a few of which have been identified. It is also metabolised in animals but to unknown products. In vitro studies have shown that it interacts with thiols (glutathione, cysteine, efc.) and proteins.
  • MetabolismDienochlor decomposes in simulated sunlight (DT50 1.6 min). Degradation is mainly environmental rather than metabolic, and photochemical breakdown is rapid. It decomposes in soils, DT50 3.1 days and DT50 2–3 days on plants exposed to sunlight.The major degradation products of dienochlor in plants are perchloroketones. It is rapidly degraded in rats.
  • DegradationDienochlor is stable in storage at 54°C for 14 days and at 42°C over 2 years. It undergoes hydrolysis with DT50 values at pH 5,7 and 9 of 184, 93 and 30.5 days, respectively, at 25 °C. It decomposes in simulated sunlight with a DT50 of 1.6 minutes (PM).
    A thin film of dienochlor on glass was readily degraded with a half-life of <1 hour on exposure to sunlight. Four photoproducts were isolated from a plethora of products and identified by 13C NMR spectroscopy (Quistad and Mulholland, 1983). The photocatalysed addition of two chlorine atoms (from donor dienochlor) afforded the tricyclic photochlorination product 2 (up to 10% yield). Three isomeric perchloroketones (3,4 and 5), each resulting from the net addition of one oxygen atom, were major products, both on glass (up to 14% combined isomers) and on cucumber and strawberry plants (up to 11% yield). Generally products 2, 3 and 4 were found in similar yields and 5 was the minor of the identified metabolites. The photochlorination product 2, however, was not detected on the plants. These products are illustrated in Scheme 1.
DIENOCHLOR Preparation Products And Raw materials
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