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Chemical Identification
Common Name
Cyhexatin
中文通用名
三环锡
IUPAC
tricyclohexyltin hydroxide
CAS
tricyclohexylhydroxystannane
CAS No.
13121-70-5
Molecular Formula
C18H34OSn
Molecular Structure
Category
Activity
Acaricide/Miticide
Premix
Flowable, wettable powder. Premix Parters: acetamiprid; chlorpyrifos; diazinon; dichlorvos; dimethoate; endosulfan; ethion; fenitrothion; naled; phenthoate; phoxim; piperonyl butoxide; piperonyl butoxide tetramethrin; profenofos; quinalphos; tetramethrin.
Physical Properties
Molecular weight:385.2; Physical form:Colourless crystals. Vapour pressure:Negligible (25 °C); Solubility:In water <1 mg/l (25 °C). In chloroform 216, methanol 37, dichloromethane 34, carbon tetrachloride 28, benzene 16, toluene 10, xylene 3.6, acetone 1.3 (all in g/ kg, 25 °C).; Stability:Stable to 100 °C in aqueous suspensions from slightly acid ( pH 6) to alkaline conditions; degraded by u.v. light.
Toxicology
Oral:Acute oral LD50 for rats 540 mg/kg, rabbits 500-1000 mg/kg, guinea pigs 780 mg/kg. Percutaneous:Acute percutaneous LD50 for rabbits >2000 mg/kg. Irritating to eyes. Phytotoxicity:Non-phytotoxic to deciduous fruit, vines, vegetables, and outdoor ornamentals. Slight injury (usually in the form of localised spotting) may occur on citrus fruit (particularly developing fruits and immature foliage), and glasshouse ornamentals and
Environmental Profile
Ecotoxicology: 
Bees:Virtually non-hazardous to honeybees (dermal LD50 0.032 mg/bee) at the recommended rates of use.Birds:Acute oral LD50 for chickens 650 mg/kg. Dietary LC50 (8 d) for mallard ducklings 3189, bobwhite quail 520 mg/kg diet.Fish: LC50 (24 h) for large-mouth bass 0.06, goldfish 0.55 mg/l,(96 h) LC50 1.7 μg/l (trout), 2.4 μg/l (bluegill); (48 h) EC50 2.0 μg/l (Daphnia).Other beneficial spp.:Virtually non-hazardous to most predacious mites and insects at the recommended rates of use. 
Environmental fate: 
Soil:Dicyclohexyl tin hydroxide, monocyclohexyl tin hydroxide, and inorganic tin compounds are formed as metabolites. Degradation is promoted by u.v. light.
 WATER SOLUBILITY: <1 mg/l at 25° C.
Transport Information
Signal Word:WARNING; Hazard Class:II (Moderately hazardous)

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