Chlorothalonil
Check formulations and concentrations, then enquire about specifications, documents and supply for your market.
Formulations & concentrations
Technical materials, single-active formulations and mixtures are listed separately. Specifications added to the enquiry list can be sent together with other products in one purchase or registration enquiry.
Technical materials
For formulation development or manufacture: define the technical material, assay, impurity profile and source documentation, then agree the processing and quality requirements.
Single-active formulations
Select the concentration and formulation for the intended product. Confirm the complete specification, packaging and destination-market label before arranging a sample or order.
Mixture formulations
Confirm each active ingredient and its concentration, together with the finished formulation. Review quality documents and the proposed registered uses for the complete mixture.
The supplied product, specification, packaging and applicable uses are confirmed for the destination market and the agreed supply arrangement.
Technical profile
- Active ingredient
- Chlorothalonil
- CAS number
- 1897-45-6
- Chemical class
- Chloronitrile multi-site fungicide (FRAC M05)
- Resistance group
- FRAC M
- Product category
- Fungicides
- Listed formulation types
- TC · SC · WG
- Listed specifications
- 4 specifications
Use the complete formulation name and concentration to identify the requested product. Technical material, single-active formulations and mixtures are reviewed as separate specifications.
Mode of action & use
Mode of action
Reacts with thiol groups in fungal cells and inactivates many enzymes at once, preventing spore germination.
Contact protectant: forms a protective deposit on plant surfaces and is not taken up into the plant.
Typical targets and crops
Broad-spectrum protectant against leaf spots, blights, anthracnose, downy mildew and scab in vegetables, peanut, potato, fruit and turf.
Resistance management · FRAC M
Multi-site contact fungicides carry a low resistance risk because they act at many sites in the fungal cell. They are valuable mixture partners for protecting single-site fungicides.
This is general information on the active ingredient. Registered crops, targets, rates and pre-harvest intervals follow the label approved in each market.
Technical documents
Documents are provided for the specification and batch you buy; the exact set is confirmed with the supply offer.
- Product specification: composition, concentration, formulation, quality limits and test methods.
- Batch certificate of analysis (COA): measured results for the supplied batch.
- Safety data sheet (SDS): the current version for the formulation supplied.
- Label and packaging documents: proposed label, pack specification, storage requirements and any documents required for registration in the target market.
Related reading
- Grey mould (Botrytis cinerea): symptoms, disease cycle and resistance managementOct 13, 2026 · 14 min read
- Powdery mildew: identification, monitoring and fungicide resistance managementOct 13, 2026 · 14 min read
- Technical material and formulation specifications: content, impurities, stability and the COAOct 13, 2026 · 13 min read
HUASHENG BIO
Good products. Lasting partnerships
Contact Huasheng about products, technology development or partnerships.