Flurazole

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Chemical Identification | General Product Information | Physical & Safety Data

Chemical Identification

Common Name

Flurazole

中文通用名

解草胺

IUPAC

benzyl 2-chloro-4-trifluoromethyl-1,3-thiazole-5-carboxylate
or
benzyl 2-chloro-4-trifluoromethylthiazole-5-carboxylate

CAS

phenylmethyl 2-chloro-4-(trifluoromethyl)-5-thiazolecarboxylate

CAS No.

72850-64-7

Molecular Formula

C₁₂H₇ClF₃NO₂S

Molecular Structure

General Product Information

Category

Herbicide Safeners > Herbicide Safeners

Activity

Herbicide safener

Physical & Safety Data

Physical Properties

Molecular weight:321.7; Physical form:Colourless crystals, with a slight sweet odour; ( tech. is a yellow to tan solid). Density:0.96 ( tech.); Composition:Tech. is 98% pure. Melting point:51-53 °C; Flash point:392 °C ( tech., Tag closed cup); Vapour pressure:3.9 × 10-2 mPa (25 °C); Henry constant:2.51 × 10-2 Pa m3 mol-1 ( calc.); Solubility:In water 0.5 mg/l (25 °C). Soluble in most organic solvents, including alcohols, ketones, and xylene.; Stability:Stable below 93 °C.;

Toxicology

Oral:Acute oral LD₅₀ for rats >5000 mg/ kg. Percutaneous:Acute percutaneous LD₅₀ for rabbits >5010 mg/kg. Non-irritating to skin; slightly irritating to eyes (rabbits). Not a skin sensitiser (guinea pigs). Inhalation:No significant adverse health effects reported through occupational exposure. ADI:(proposed) 0.005 mg/ kg.

Environmental Profile

Ecotoxicology:
Birds:Acute oral LD₅₀ for bobwhite quail >2510 mg/kg. Dietary LC₅₀ (5 d) for mallard ducks and bobwhite quail >5620 ppm.Daphnia: LC₅₀ (48 h) 6.3 mg/l.Fish: LC₅₀ (96 h) for common carp 1.7, rainbow trout 8.5, bluegill sunfish 11 mg/l.

Environmental fate:
Soil:Rapidly degraded in soil, with the formation of water-soluble metabolites. Breakdown is primarily microbial, with chemical breakdown of lesser importance.

Transport Information

Hazard Class:O (Obsolete as pesticide, not classified)