Isoprothiolane
Action/Use:
- Fungicide
- ;
- Insecticide
Use:
Fuji-One* for rice blast. Submerged, foliar, or nursery box applications to suppress rice planthoppers.
Identification
Common Name(s): Isoprothiolane (ISO, BSI, JMAF)
Chemistry
Properties: Pure colorless crystal. Yellow solid. Melting point 54.0°-54.5°C (pure), 50°-51°C. Boiling point 167°-169°C/0.5 mm Hg. Vapor pressure 1.4 x 10-4 mm Hg/25°C. Solubility in organic solvents at 25°C: methanol 150 g/100 g; dimethyl sulfoxide 230 g/100 g; acetone 400 g/100 g; chloroform 230 g/100 g; benzene 300 g/100 g; xylene 230 g/100 g; n-hexane 4 g/100 g.
Mode of Action / Resistance Management
Taget Site: F2: Phospholipid biosynthesis methyltransferase
Mode of Action: Lipids and membrane synthesis
Action Group: FRAC Code 6
Comments / Risk Notes: Low to medium risk. Resistance known for specific fungi. Resistance management required if used for risky pathogens.
Environmental Guidelines
Water Solubility: 48 ppm at 20°C
Safety Guidelines
Signal Word: CAUTION
Toxicity Class: III
Toxicity: (Rat): Oral LD50 1190 mg/kg. Dermal LD50 >10,250 mg/kg
Handling/storage Cautions: Avoid skin, eye contact and inhalation. Store in cool place
Protective Clothing: Protective eyewear. Approved respirator.
Suppliers and Branded Products
Basic Producers:
Formulators' Trade Names:
Proficol (Recio*)
Rallis India Ltd. (Fuji-One*)
Sae Ryung Chemicals Co., Ltd. (Isoran*)
Willowood Ltd. (Isoprotiolano*)
Premix Products:
+ Carbendazim
+ Iprobenfos
+ Propiconazole
- Fujizole* — Insecticidas Internacionales, C.A.
+ Tricyclazole
- Downy* — BMC Group Co., Ltd.

