Quinoxyfen 
Action/Use:
- Fungicide
Use:
For control of powdery mildew in cereal, cherries, grapes, hops, and sugarbeets.
Identification
Common Name(s): Quinoxyfen (ANSI, BSI, ISOPA)
Chemistry
Formula: C15H8CI2FNO.
Properties: Off-white solid. Solubility in acetone 116, dichloromethane 589, ethyl acetate 179, methanol 21.5, n-octanol 37.9, toluene 272, hexane 9.64, xylene 200 (all in g/l, 20°C).
Mode of Action / Resistance Management
Taget Site: E1: G-proteins in early cell signaling (proposed)
Mode of Action: Signal transduction
Action Group: FRAC Code 13
Comments / Risk Notes: Medium risk. Resistance management required.
Environmental Guidelines
Hazards: Fish: LC50 (96 h) >0.2 mg/l (bluegill sunfish, rainbow trout). Bird: LC50 (5 d) >5620 mg/kg diet (2 species). Bee: LC50 (Oral) >1000 mg/kg honeybee
Water Solubility: 116 µg/l at 20°C (pH 6.45)
Safety Guidelines
Toxicity: Tech (Rat): Oral LD50 >5000 mg/kg. (Rabbit): Dermal LD50 >2000 mg/kg. Inhalation LC50 (Rat): >3.38 mg/l
Suppliers and Branded Products
Basic Producers:
Dow AgroSciences LLC (Arius*, Fortress*, Quintec*)
