Fenoxycarb

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Chemical Identification | General Product Information | Physical & Safety Data

Chemical Identification

Common Name

Fenoxycarb

中文通用名

苯氧威

IUPAC

ethyl 2-(4-phenoxyphenoxy)ethylcarbamate

CAS

ethyl [2-(4-phenoxyphenoxy)ethyl]carbamate

CAS No.

79127-80-3,72490-01-8

Molecular Formula

C₁₇H₁₉NO₄

Molecular Structure

General Product Information

Category

Insecticides > Insect growth regulators

Activity

Fenoxycarb is an insect growth regulator active by contact and ingestion. It also has some ovicidal activity. The product controls larval stages (in particular last instars) of Lepidoptera and certain hemipteran species. The company recommends one or two applications per season depending on pest pressure. Fenoxycarb should not be used during blooming periods.

CropUse

CropUses:
fruits, turf, amenity areas, ornamentals, vines

Fruit	75-200 g ai/ha; 25-300 g ai/hl
Vines	135-270 g ai/ha
Stone fruit	7.5-15 g ai/hl

Premix

FENOXYCARB+PERMETHRIN
Fenoxycarb+beta-cypermethrin
Baits, water dispersible granule, wettable powder.
Premix Parters: difenoconazole; fenpropimorph; fenpropimorph prochloraz; prochloraz; propiconazole; propiconazole tebuconazole; tebuconazole;

Physical & Safety Data

Physical Properties

Molecular weight:301.3; Physical form:Colourless to white crystals. Density:1.23 (20 °C) ( OECD 109); Melting point:53-54 °C ( OECD 102); Flash point:c. 224 °C; Vapour pressure:8.67 ×10-4 mPa (25 °C) ( OECD 104); Henry constant:3.3 × 10-5 Pa m3 mol-1 ( calc.); Partition coefficient(n-octanol and water):logP = 4.07 (25 °C) ( OECD 107); Solubility:In water 7.9 mg/l ( pH 7.55-7.84, 25 °C). In ethanol 510, acetone 770, toluene 630, n-hexane 5.3, n-octanol 130 (all in g/l).; Stability:Stable to light. Stable to hydrolysis in aqueous solutions at pH 3, 7, and 9 at 50 °C.;

Toxicology

Oral:Acute oral LD₅₀ for rats >10 000 mg/ kg. Percutaneous:Acute percutaneous LD₅₀ for rats >2000 mg/ kg (occlusive). Non-irritating and non-sensitising to skin (maximisation test); not an eye irritant. Inhalation: LC₅₀ for rats >4400 mg/m³ air. Phytotoxicity:Some varieties of pears, vines, citrus fruit and ornamentals may be injured.

Environmental Profile

Ecotoxicology:
Algae: EC₅₀ (96 h) for Scenedesmus subspicatus 1.10 mg/l.Bees:Non-toxic to bees; oral LC₅₀ (24 h) >1000 ppm.Birds:Acute oral LD₅₀ for Japanese quail >7000 mg/kg. LC₅₀ (8 d) for bobwhite quail >25 000 ppm.Daphnia: LC₅₀ (48 h) 0.4 mg/l.Fish: LC₅₀ (96 h) for carp 10.3, rainbow trout 1.6 mg/l.Worms: LC₅₀ (14 d) for earthworms 850 mg/ kg soil.Other beneficial spp.:Under field conditions, fenoxycarb (formulated as 'Insegar 25 WP') is safe to predators such as Phytoseiidae, to endoparasitic Hymenoptera species, to certain predators such as predatory bugs, and it is semi-selective on certain predators such as coccinel

Environmental fate:
Animals:In rats, the major metabolic path is ring hydroxylation to form ethyl [2-[p-(p-hydroxyphenoxy)phenoxy]ethyl]carbamate.Soil:Low mobility in soil, no bioaccumulation. Relatively fast degradation in soil and water: DT₅₀ 1.7-2.5 months (lab.), few to 31 days (field).Plant:Rapidly degraded in plants.WATER SOLUBILITY: 6 ppm

Transport Information

Signal Word:CAUTION; Hazard Class:III(Slightly hazardous)