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Chlorothalonil Technical (CAS No. 1897-45-6) is a broad-spectrum contact fungicide from the chloronitrile (halogenated benzonitrile) chemical class, supplied at a purity of 99.10%. Used across the United States for preventive control of major fungal diseases, including early blight, late blight, downy mildew, leaf spot, anthracnose, and rusts in vegetables, fruit crops, cereals, peanuts, rice, turf, and ornamental applications. It operates through a multi-site mode of action, binding to thiol groups in fungal proteins and disrupting essential enzymatic and metabolic processes, thereby inhibiting spore germination and fungal growth while reducing the risk of resistance development. Chlorothalonil acts strictly at the point of contact, forming a protective layer on plant surfaces. This makes it an essential active ingredient in preventive disease-management programs in U.S. agriculture. Scimplify is an established Chlorothalonil manufacturer and supplier in the USA, delivering technical products with controlled specifications, impurity consistency, and compliance with EPA and FIFRA regulatory standards. Supplied as a white-to-off-white crystalline solid, Chlorothalonil Technical is used as the base active in standard formulations such as WP, SC, and WG, with reliable lead times, stable USD-based pricing, and consistent supply to support the long-term sourcing needs of U.S. crop protection formulators.
Chlorothalonil Technical (CAS No. 1897-45-6) is a broad-spectrum contact fungicide from the chloronitrile (halogenated benzonitrile) chemical class, supplied at a purity of 99.10%. Used across the United States for preventive control of major fungal diseases, including early blight, late blight, downy mildew, leaf spot, anthracnose, and rusts in vegetables, fruit crops, cereals, peanuts, rice, turf, and ornamental applications. It operates through a multi-site mode of action, binding to thiol groups in fungal proteins and disrupting essential enzymatic and metabolic processes, thereby inhibiting spore germination and fungal growth while reducing the risk of resistance development. Chlorothal...
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Agrochemicals
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Crop Protection & Pest Control
Fungicides
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Chemical Properties & Specifications
Skin Sensitizer: Category 1 Acute Inhalation Toxicity: Category 3 Environmental Hazard – Aquatic Chronic: Category 1
H317: May cause allergic skin reaction H331: Toxic if inhaled H410: Very toxic to aquatic life with long lasting effects
P261: Avoid breathing dust P280: Wear protective gloves and clothing P273: Avoid release to the environment
Late blight, leaf spots, downy mildew, anthracnose
Vegetables, peanuts, potatoes, rice, bananas, turf, ornamentals
Contact fungicide that inhibits spore germination and enzyme activity
Used in WP, SC, and WG formulations; pre-mixed or tank-mixed for preventive spraying
15–30°C
25 kg fiber drums
2 drums high on pallets
UN 3077 | Class 9 | PG III (Environmental Hazardous Substance)
It prevents fungal infection by creating a protective barrier and interfering with thiol-based enzymes.
Commonly used on peanuts, vegetables, rice, and turfgrass.
Reprocessed into WP, SC, and WG products by agroformulation units.
No, due to multi-site mode of action, resistance is unlikely when used responsibly.
COA, TDS, MSDS, bioefficacy reports.
