Chlorothalonil 50% + Dimethomorph 15% WG
ChlorothalonilChlorothalonil is a broad spectrum fungicide that is approved for use in the EU and is widely used. It has a low aqueous solubility, is volatile and would not be expected to leach to groundwater. It is slightly mobile. It tends not to be persistent in soil systems but may be persistent in water. It has a low mammalian toxicity but there is some concern regarding its bioaccumulation potential. It is a recognised irritant. Chlorothalonil is moderately toxic to birds, honeybees and earthworms but considered to be more toxic to aquatic organisms.
Description: A fungicide used to control a wide range of diseases on a broad range of crops. Also used as a wood preservative.
Example pests controlled: Rust; purple spot; Leaf blight; Anthracnose; Downy mildew; Ring spot; Stalk rot; Botrytis rot; Pod & stem blight
Example applications: Cereals; Vegetables including asparagus, beans, cabbage, cauliflower, broccoli, carrot, onions, celery, curcubits; Corn for seed; Fruit including cranberries, melon; Mushrooms; Peanuts; Potatoes
Chemical structure: | Isomerism | None |
| Chemical formula | C8Cl4N2 |
| Canonical SMILES | C(#N)C1=C(C(=C(C(=C1Cl)Cl)Cl)C#N)Cl |
| Isomeric SMILES | No data |
| International Chemical Identifier key (InChIKey) | CRQQGFGUEAVUIL-UHFFFAOYSA-N |
| International Chemical Identifier (InChI) | InChI=1S/C8Cl4N2/c9-5-3(1-13)6(10)8(12)7(11)4(5)2-14 |
| Pesticide type | Fungicide |
| Substance group | Chloronitrile |
| Minimum active substance purity | 985 g/kg |
| Known relevant impurities | EU dossier - Hexachlorobenzene 0.04 g/kg; Decachlorobiphenyl 0.03 g/kg |
| Substance origin | Synthetic |
| Mode of action | Non-systemic, broad-spectrum, foliar action with some protectant properties. Acts by preventing spore germination and zoospore motility. Multi-site activity. |
| CAS RN | 1897-45-6 |
| EC number | 217-588-1 |
| CIPAC number | 288 |
| US EPA chemical code | 081901 |
| PubChem CID | 15910 |
| Molecular mass (g mol-1) | 265.91 |
| PIN (Preferred Identification Name) | 2,4,5,6-tetrachlorobenzene-1,3-dicarbonitrile |
| IUPAC name | tetrachloroisophthalonitrile |
| CAS name | 2,4,5,6-tetrachloro-1,3-benzenedicarbonitrile |
| Other status information | - |
| Relevant Environmental Water Quality Standards | UK Environment Agency non-statutory standard for the protection of aquatic life: freshwater and saltwater annual average 0.1 ug/L, max acceptable conc 1.0 ug/L |
Example pests controlled: Downy mildew; Anthracnose; Phytophthora cactorum, Septoria leaf spot; Late blight; Root rot; Crown rot
Example applications: Curcubits; Grapevines; Head lettuce; Onions; Potatoes; Fruit including blackberries, raspberries, strawberries, grapes
Chemical structure: | Isomerism | Isomeric - a mixture of two isomers (E & Z) but only the Z-isomer has fungicidal activity |
| Chemical formula | C21H22ClNO4 |
| Canonical SMILES | COC1=C(C=C(C=C1)C(=CC(=O)N2CCOCC2)C3=CC=C(C=C3)Cl)OC |
| Isomeric SMILES | COC1=C(C=C(C=C1)/C(=C/C(=O)N2CCOCC2)/C3=CC=C(C=C3)Cl)OC |
| International Chemical Identifier key (InChIKey) | QNBTYORWCCMPQP-UHFFFAOYSA-N |
| International Chemical Identifier (InChI) | InChI=1S/C21H22ClNO4/c1-25-19-8-5-16(13-20(19)26-2)18(15-3-6-17(22)7-4-15)14-21(24)23-9-11-27-12-10-23/h3-8,13-14H,9-12H2,1-2H3/b18-14- |
| Pesticide type | Fungicide |
| Substance group | Morpholine |
| Minimum active substance purity | 965 g/kg (E/Z isomer ratio 44/56) |
| Known relevant impurities | EU dossier - None declared |
| Substance origin | Synthetic |
| Mode of action | Systemic with good protective activity. Cellulose synthesis inhibitor. |
| CAS RN | 110488-70-5 |
| EC number | 404-200-2 |
| CIPAC number | 483 |
| US EPA chemical code | 268800 |
| PubChem CID | 5889665 |
| Molecular mass (g mol-1) | 387.86 |
| PIN (Preferred Identification Name) | (2EZ)-3-(4-chlorophenyl)-3-(3,4-dimethoxyphenyl)-1-(morpholin-4-yl)prop-2-en-1-one |
| IUPAC name | (EZ)-4-[3-(4-chlorophenyl)-3-(3,4-dimethoxyphenyl)acryloyl]morpholine |
| CAS name | 4-(3-(4-chlorophenyl)-3-(3,4-dimethoxyphenyl)-1-oxo-2-propenyl)morpholine |