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Lactofen

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Chemical Identification | General Product Information | Physical & Safety Data

Chemical Identification

Common Name

Lactofen

中文通用名

乳氟禾草灵

IUPAC

ethyl O-[5-(2-chloro-α,α,α-trifluoro-p-tolyloxy)-2-nitrobenzoyl]-DL-lactate

CAS

2-ethoxy-1-methyl-2-oxoethyl 5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-nitrobenzoate

CAS No.

77501-63-4

Molecular Formula

C₁₉H₁₅ClF₃NO₇

Molecular Structure

General Product Information

Category

Herbicides > Diphenyl ether herbicides

Activity

Herbicide

Physical & Safety Data

Physical Properties

Molecular weight:461.8g/mol; Physical form:Dark brown to tan. Density:1.391 (25℃); Composition:Tech. is 74-79%. Melting point:44-46℃; Flash point:93 ℃; Vapour pressure:9.3 × 10-3 mPa (20 ℃); Henry constant:4.56 × 10-3 Pa m3 mol-1 (20℃, calc.); Solubility:In water <1 mg/l (20℃).; Stability:No decomposition at ambient temperatures for 6 months.

Toxicology

Oral:Acute oral LD₅₀ for rats >5000 mg/ kg. Percutaneous:Acute percutaneous LD₅₀ for rats 2000 mg/kg. Formulation severely irritating to eyes. Inhalation: LC₅₀ (4 h) for rats >5.3 mg/l. ADI:( JMPR) 0.4 mg/ kg b.w. [1998].

Environmental Profile

Ecotoxicology:
Bees: LD₅₀ >160 μg/bee.Birds: LD₅₀ for quail >2510 mg/kg. LC₅₀ for ducks and quail >5620 ppm.Daphnia: LD₅₀ >100 ppb.Fish: LC₅₀ (96 h) for bluegill sunfish and rainbow trout >100 ppb.
Environmental fate:
Soil:Microbially degraded, DT₅₀ 3-7 d. K_oc 10 000.

Transport Information

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

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