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Chemical Identification
Common Name
Diethofencarb
中文通用名
乙霉威
IUPAC
isopropyl 3,4-diethoxycarbanilate
CAS
1-methylethyl (3,4-diethoxyphenyl)carbamate
CAS No.
87130-20-9
Molecular Formula
C14H21NO4
Molecular Structure
Category
Activity
Fungicide
Premix
Chlorothalonil+diethofencarb
Carbendazim+diethofencarb
Thiophanate-methyl+diethofencarb
Diethofencarb+Benomyl
Premix Parters: anthraquinone fludioxonil; carbendazim; chlorothalonil; cyproconazole; cyprodinil; dinocap; fenpropidin; fenpropimorph; fludioxonil; fludioxonil metalaxyl-M; fludioxonil metalaxyl-M thiamethoxam; fludioxonil tebuconazole; metalaxyl-M; propiconazole; thiamethoxam.
Physical Properties
Molecular weight:267.3; Physical form:White, crystalline solid; ( tech. is a colourless to light brown solid). Density:1.19 (23 °C); Melting point:100.3 °C; Flash point:140 °C; Vapour pressure:8.4 mPa (20 °C); Henry constant:8.44×10-2 Pa m3 mol-1 ( calc.); Partition coefficient(n-octanol and water):logP = 3.02 (25 °C); Solubility:In water 26.6 mg/l (20 °C). In hexane 1.3, methanol 101, xylene 30 (all in g/ kg, 20 °C). Soluble in most organic solvents.
Toxicology
Oral:Acute oral LD50 for rats >5000 mg/kg. Percutaneous:Acute percutaneous LD50 for rats >5000 mg/kg. Inhalation: LC50 (4 h) for rats >1050 mg/m3. ADI:0.007 mg/kg b.w. [2000].
Environmental Profile
Ecotoxicology: 
Bees:Contact LC50 20 μ g/bee.Birds:Acute oral LD50 for bobwhite quail and mallard ducks >2250 mg/kg.Daphnia: LC50 (3 h) for D. pulex >10 mg/l.Fish: LC50 (96 h) for rainbow trout >18 mg/l. 
Environmental fate: 
Animals:After oral administration of 14C-diethofencarb to rats, 98.5-100 % of 14C was excreted within 7 days. The major metabolic routes in the rat were de-ethylation of the 4-ethoxy group, cleavage of the carbamate linkage, acetylation and Soil:Readily degraded in soil; DT50 <1-6 d under aerobic conditions; only very slightly degraded under anaerobic sterilised conditions.Plant:Readily degraded in plants.
WATER SOLUBILITY: 26.6 ppm at 25°C.
Transport Information
Signal Word:CAUTION; Hazard Class:III (Slightly hazardous)

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