Chemical Property of Cymoxanil
Chemical Property:
- Appearance/Colour:White crystal
- Vapor Pressure:1.5 x 10-4 Pa (20 °C)
- Melting Point:160-161oC
- Refractive Index:1.537
- Boiling Point:335.48°C (rough estimate)
- PKA:9.7
- Flash Point:100 °C
- PSA：103.58000
- Density:1.27 g/cm3
- LogP:0.13988
- Storage Temp.:0-6°C
- Water Solubility.:890 mg l-1 (pH 5), 780 mg l-1 (pH 7),
unstable at pH 9 at 20 °C
- XLogP3:0.7
- Hydrogen Bond Donor Count:2
- Hydrogen Bond Acceptor Count:5
- Rotatable Bond Count:3
- Exact Mass:198.07529019
- Heavy Atom Count:14
- Complexity:301
- Purity/Quality:
-
99% *data from raw suppliers
Cymoxanil *data from reagent suppliers
Safty Information:
- Pictogram(s):
Xn, 
N
- Hazard Codes:Xn;N,N,Xn
- Statements:
22-43-50/53
- Safety Statements:
36/37-60-61
- MSDS Files:
-
SDS file from LookChem
Useful:
- Chemical Classes:Pesticides -> Fungicides
- Canonical SMILES:CCNC(=O)NC(=O)C(=NOC)C#N
- Isomeric SMILES:CCNC(=O)NC(=O)/C(=N/OC)/C#N
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Description
Cymoxanil was first introduced in 1977. It is an acetimide compound used as both a curative and preventative foliar fungicide. In Europe it is being sold for use on grapes, potatoes, tomatoes, hops, sugarbeets and other vegetable crops. Cymoxanil is currently not registered in the U.S. Cymoxanil is a fungicide used on crops including potatoes, tomatoes, and grapes. Cymoxanil is not registered for non-crop use in any country. Cymoxanil's mode of action is as a local systemic. It penetrates rapidly and when inside the plant, it cannot
be washed off by rain. It controls diseases during the incubation period and prevents the appearance of damage on the crop. The fungicide is primarily active on fungi belonging to the Peronosporales order: Phytophthora, Plasmopara, and Peronospora. Cymoxanil is a cyanoacetamide fungicide. It inhibits the mycelial growth of 12 isolates of P. infestans with EC50 values of 0.27-0.57 μg/ml. Cymoxanil (5-100 mg/l) inhibits the growth of several strains of S. cerevisiae (IC50s = 8-25 mg/l) but not S. pombe, K. marxianus, P. anomala, or C. utilis. A spray application of cymoxanil (1 mg/mL) one day after inoculation of potato leaves with P. infestans and cucumber leaves with P. cubensis reduces blighted leaves by 79 and 60%, respectively. It is toxic to rats with an acute LD50 value of 3.8 mmol/kg. Formulations containing cymoxanil have been used to prevent fungal growth on crops and treat late potato blight in agriculture.
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Physical Properties
Technical cymoxanil is a peach colored crystalline, odorless solid.
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Uses
Efficient fungicide Cymoxanil is a fungicide applied as a seed treatment or as a foliar application to the plants to control late blight. Agricultural fungicide. Cymoxanil is a foliar applied fungicide which provides preventive
and curative control of pathogen species of the order Peronosporales
(eg. Phytophthora, Plasmopara and Peronospora) in grapes, potatoes,
tomatoes, hops, tobacco and cucurbits.
