(R*,R*)-(?-b-[(4-chlorophenyl)methyl]-a-(1,1-dimethylethyl)-1H-1,2,4-triazole-1-ethanol

(2RS,3RS)-1-(4-chlorophenyl)-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl)pentan-3-ol

C₃₀H₄₀Cl₂N₆O₂

Form White, crystalline solid.

Melting point 165-166℃.

Density 1.22 g/ml.

Solubility In water 26 mg/l (20℃). In acetone 110, cyclohexanone 180, dichloromethane 100, hexane 10, xylene 60, methanol 150, propylene glycol 50 (all in g/l, 20℃).

Oral Acute oral LD50 for male rats 2000, female rats 1300, male mice 490, female mice 1200, guinea pigs 400-600, male rabbits 840, female rabbits 940 mg/kg. Skin and eye Acute percutaneous LD50 for rats and rabbits >1000 mg/kg. Mild skin irritant; moderate eye irritant (rabbits). Not a skin sensitiser (guinea pigs). Inhalation LC50 (4 h) for male rats 4.79, female rats 3.13 mg/l air.

Used on fruit trees to inhibit vegetative growth and to improve fruit set; on pot-grown ornamentals and flower crops (e.g. chrysanthemums, begonias, freesias, poinsettias and bulbs) to inhibit growth; on rice to increase tillering, reduce lodging, and increase yield; on turf to retard growth; and on grass seed crops to reduce height and prevent lodging. To be applied as a foliar spray, as a soil drench, or by trunk injection. Has some fungicidal activity against mildew and rusts.

Description: White to claybank soild,free from visible extraneous matter; Active Ingredient Content(w/w): ≥95%; pH Range: 4.0~9.0; Loss on Drying(w/w): ≤0.5%; Acetone Insoluble Material(w/w): ≤0.5%