Common name: Quizalofop-P-tefuryl

Chemical name:

(RS)-tetrahydrofurfuryl (R)-2-[4-(6-chloroquinoxalin-2-yloxy)phenoxy]propionate (tetrahydro-2-furanyl)methyl (2R)-2-[4-[(6-chloro-2-quinoxalinyl)oxy]phenoxy]propanoate Trade name: Pantera [Brand name of Crompton crop (Uniroyal Chemical)]

Molecular formulae: C22H21ClN2O5

Chemical structure:

Physical and chemical properties:

Molecular weight:428.9; Physical form: thick yellow liquid, which can crystallise upon standing at room temperature. Density:1283 kg/m³ (21.5 °C); Melting point:59-68 °C; ( tech. is a liquid); Flash point:>110 °C (Pensky-Martens); Vapour pressure:7.9 ×10-3 mPa (25 °C, gas saturation method); Henry constant:8.47 × 10-4 Pa m³ /mol- ( calc.); Partition coefficient(n-octanol and water): logP = 4.32 (25 °C); pKa:1.25 (25 °C); Solutility In water 4 mg/l (25 °C). In toluene 652, hexane 12, methanol 64 (all in g/l).; Stability: Stable for ×14 d at 55 °C. Pure compound: white solid powder. Soluble in toluene 65.2 g/100 ml.

Purity: 95%

Mode of actions:

Quizalofop-P-tefuryl is classified as a Group A herbicide. It is active following post-emergence application to annual and perennial weeds.

Crop uses:

Alfalfa, apples, beans, beetroot, cabbage, canola, carrots, cauliflower, chickpeas, citrus, cucumber, cotton, flax, fodder beet, grape, lettuce, lentils, linseed, melon, oilseed rape, onions, peaches, peanuts, pears, peas, peppers, potatoes, pumpkins, radish, soybeans, squash, sugar beet, sunflowers, tobacco, tomatoes, white potatoes.

Toxicology:

Tech (Rat): Oral LD50 1140 mg/kg. (Rabbit): Dermal LD50 >2000 mg/kg Environmental profile

Bobwhite quail LD50 >2,150 mg/kg Mallard duck LC50 >5,000 ppm Trout [96 h] LC50 0.51 mg/L

Sunfish [96 h] LC50 0.23 mg/L

Fate in soil:

Quizalofop-P-tefuryl is degraded by hydrolysis in soil. It has a half-life of 8 days. The product has minimal downward movement in soil. Fate in aquatic systems:

Quizalofop-P-tefuryl undergoes photodegradation in aquatic systems. It has a half-life of 25 hours.

Transportation information:

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

Other products:

Straight formulated products: Quizalofop-P-tefuryl 40g/L EC