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Common NameAcequinocyl
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中文通用名灭螨醌
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IUPAC3-dodecyl-1,4-dihydro-1,4-dioxo-2-naphthyl acetate
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CAS2-(acetyloxy)-3-dodecyl-1,4-naphthalenedione
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CAS No.57960-19-7
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Molecular FormulaC24H32O4
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Molecular Structure
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Category
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ActivityInsecticide
Acequinocyl is active against all mite life stages, especially motile forms. It has activity against strains resistant to established acaricides. The product is primarily a contact acaricide; acequinocyl is not systemic and can act secondarily by oral uptake. It has a long residual activity, lasting 30-40 days at field rates.
Mode of action studies on the housefly confirmed that acequinocyl is not responsible for the observed inhibition of electron transport at Complex III in mitochondria; the activity is due to the formation, by hydrolysis, of the deacetylated metabolite (2-hydroxy-3-dodecyl-1,4-naphthaquinone, DHN).
Official efficacy trials in Japan show the miticide to have an excellent efficacy and crop safety and no development of miticide resistance were detected. Thorough foliar coverage and early application, when threshold populations are observed, are required for optimal activity. -
CropUseCrop uses:
almonds, apples, aubergines, cherries, citrus, cucumbers, fruiting vegetables, gherkins, Japanese pears, Japanese plums, lemons, melons, ornamentals, peaches, pears, pistachios, plums, pome fruits, prunes, strawberries, tomatoes, tree nuts, vegetables, vines, water melons
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Physical PropertiesPale yellowish flake, slightly aromatic odor. Melting point: 59.6℃.
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Toxicology(Rat): Oral LD50 >5000mg/kg. Dermal LD50 >2000 mg/kg
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Environmental ProfileEcotoxicology:
LC50>100 ppm (carp，rainbow trout) Bird:LD50> for 2000 mg/kg (mallard ducks，Japanese quail)
WATER SOLUBILITY:<10 μg/l at 20℃Mallard duckLD50 >2,000 mg/kgJapanese quailLD50 >2,000 mg/kgRainbow trout [96 h]LC50 >33 mg/LCarp [96 h]LC50 >96.5 mg/LEarthwormLC50 >1,000mg/kg soilFate in :
Acequinocyl is a selective miticide with no ecological risks for the following beneficial terrestrial species: parasitoid wasp (Hymenoptera; Braconidae), lacewing (Neuroptera; Chrysopidae), honey bee (Hymenoptera; Apidae), spider (Araneae; Lycosidae), ground beetle (Coleoptera; Carabidae), earthworm (Annelida; Oligochaeta), rove beetle (Coleoptera; Staphylinidae)Fate in soil:
DT50 was less than 3 days in aerobic conditions.Fate in aquatic systems:
Acequinocyl is degraded by photolysis and hydrolysis. The photolytic half-life is 14 minutes. The rate of hydrolysis is dependent on pH, being faster at high pH. -
Transport Information
Signal Word:CAUTION; Hazard Class:III(Slightly hazardous)