NOMENCLATURE
Common name butachlor (BSI, draft E-ISO, (m) draft F-ISO, ANSI, WSSA, JMAF); no name (France)
IUPAC name N-butoxymethyl-2-chloro-2',6'-diethylacetanilide
Chemical Abstracts name N-(butoxymethyl)-2-chloro-N-(2,6-diethylphenyl)acetamide
CAS RN [23184-66-9] Development codes CP 53 619 (Monsanto)
PHYSICAL CHEMISTRY
Composition ³93.5% pure. Mol. wt. 311.9 M.f. C17H26ClNO2 Form Light yellow to purple liquid with a faint, sweet odour. M.p. -2.8 ¡ãC to 1.7 ¡ãC B.p. 156 ºC/0.5 mmHg V.p. 2.4 ´ 10-1 mPa (25 ¡ãC) Henry 3.74 ´ 10-3 Pa m3 mol-1 (calc.) S.g./density 1.076 (25 ºC) Solubility In water 20 mg/l (20 ºC). Soluble in most organic solvents, including diethyl ether, acetone, benzene, ethanol, ethyl acetate, and hexane. Stability Decomposes at ³165 ºC. Stable to u.v. light. Stable indefinitely £45 ¡ãC. F.p. >135 ¡ãC (Tag closed cup) Other properties Viscosity 37 cP (25 ¡ãC)
APPLICATIONS
Biochemistry Inhibits cell division by blocking protein synthesis. Mode of action Selective systemic herbicide, absorbed primarily by the germinating shoots, and secondarily by the roots, with translocation throughout the plant, giving higher concentrations in vegetative parts than in reproductive parts. Uses Used pre-emergence for the control of annual grasses and certain broad-leaved weeds in rice, both seeded and transplanted. It shows selectivity in barley, cotton, peanuts, sugar beet, wheat and several brassica crops. Effective rates range from 1.0-4.5 kg a.i./ha. Activity is dependent on water availability such as rainfall following treatment, overhead irrigation or applications to standing water as in rice culture. Phytotoxicity Non-phytotoxic to rice, cotton, barley, wheat, peanuts, sugar beet, and some brassicas. Formulation types EC; GR.
|
product name |
butachlor 92% tc |
|
appearance |
brown transparent liquid |
|
a.i.content |
92.1% |
|
water |
0.1% |
|
acidity |
0.1% |
