Butachlor
| Specification | |
| Active Ingredient | 92% min. |
| Appearance | Light yellow to purple liquid with a faint, sweet odor |
| Physical and chemical properties | |
| Chemical Name | N-butoxymethyl-2-chloro-2’,6’-diethylacetanilide |
| Empirical Formula | C17H26ClNO2 |
| Molecular Weight | 311.9 |
| Structural Formula |
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| Melting point | -2.8 to1.7℃ |
| Solubility | In water 20 mg/l (20℃). Soluble in most organic solvents, including diethyl ether, acetone, benzene, ethanol, ethyl acetate, and hexane. |
| Vapor pressure |
0.24 mPa (25℃) |
| Formulations |
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60% (w/v) EC, 5% G
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| Application |
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Butachlor is a selective systemic herbicide, absorbed primarily by the germinating shoots,and secondarily bythe roots,with translocation throughout the plant, giving higherconcentrations in vegetative parts than in reproductive parts.
Used pre-emergence for thecontrol of annual grasses and certain broad-leaved weeds in rice, both seeded andtransplanted.It shows selectivity in barley, cotton, peanuts, sugar beet, wheat and severalbrassica crops.Effective rates range from 1.0-4.5 kg a.i./ha. Activity is dependent on wateravailability such as rainfall followingtreatment, overhead irrigation or applications to standingwater as in rice culture.
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