Cyproconazole
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IUPAC name
2-(4-Chlorophenyl)-3-cyclopropyl-1-(1H-1,2,4-triazol-1-yl)-2-butanol
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3D model (JSmol)
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| ECHA InfoCard | 100.130.443 |
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PubChem CID
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| Properties | |
| C15H18ClN3O | |
| Molar mass | 291.78 g·mol−1 |
| Melting point | 107.5 °C (225.5 °F; 380.6 K) |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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| Infobox references | |
Cyproconazole is an agricultural fungicide of the class of azoles, used on cereal crops, coffee, sugar beet, fruit trees and grapes, on sod farms and golf courses and on wood as a preservative. It was introduced to the market by then Sandoz in 1994 (which is Syngenta as of 2000).
Cyproconazole inhibits demethylation, a particular step in the synthesis of a component of the fungal cell wall called sterol. This means it affects fungal growth, but not the fungal sporulation. This explains why it must be used when fungal growth is maximum, early in the infection, because in late infections fungal growth slows down and the agent is ineffective.
Many different formulations exist with imazalil, difenoconazole, prochloraz, propiconazole, chlorothalonil, cyprodinil, fludioxonil, azoxystrobin, and copper. In wood preservatives it is mixed with didecyldimethylammonium chloride. It is the active ingredient in two foliar fungicides for soybeans in the U.S., Alto X, and mixed with azoxystrobin in Quadris Xtra, both by Syngenta. It is also manufactured by Bayer CropScience and Dow AgroSciences.
Cyproconazole is used against powdery mildew, rust on cereals and apple scab, and applied by air or on the ground to cereal crops, coffee, sugar beet, fruit trees and grapes. It controls the following pests: Puccinia graminis, Puccinia spp., Pseudocercosporella herpotrichoides and Septoria species. It can be used on above-ground wood to prevent it from decay from fungi as an alternative to Chromated Copper Arsenate. It was originally marketed for use on sod farms and golf courses In the U.S., chemigation is allowed with less than half inch application, aerial spraying with a 5 gpa minimum, ground application is adequate for coverage and canopy penetration. The re-rentry interval is 12 hours. Reapplication within 30 days of harvest is not permitted.
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Wikipedia