Quinclorac is an organic compound with the formula {C9NH4Cl2CO2H. A colorless solid, it is soluble in hydrocarbons and alcohols. The compound is the carboxylic acid of 3,7-dichloroquinoline.
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Preferred IUPAC name
3,7-Dichloroquinoline-8-carboxylic acid | |
Other names
Quinchlorac
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ECHA InfoCard | 100.100.457 |
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CompTox Dashboard (EPA)
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Properties | |
C10H5Cl2NO2 | |
Molar mass | 242.06 g·mol−1 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
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Quinclorac is an herbicide used primarily to control crabgrass.[1] It is found in some household herbicides for lawn use. Most[citation needed] lawn maintenance companies use the product for the control of annual grass weeds like crabgrass.
Quinclorac is a synthetic auxin.[2][3] Heap considers it to also have a cellulose herbicide action,[4] although some studies show quinclorac to have no cellulose action.[5]
Quinclorac is not approved to use in the European Union due to toxicity concerns.[6][7]
Resistance to quinclorac is of concern in soybean cultivation. In rice, Graminaceous resistance is produced by the cytochrome enzyme CYP81A6.[8]