Customization: | Available |
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CAS No.: | 94-74-6 |
Formula: | C9H9ClO3 |
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Appearance |
Homogeneous yellow liquid |
Content of a.i. |
≥500 g/L |
Water |
≤ 0.5% |
pH |
5.0~8.0 |
Common Name
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MCPA
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Chemical name
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4-chloro-o-tolyloxyacetic acid
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Molecular Formula
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C9H9ClO3
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Molecular Weight
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200.62.
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CAS Registry Number
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94-74-6
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Properties:
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Form White to light brown solid, flakes, crystal powder or liquid. Same as 2,4-D except for replacement of one chlorine atom by a methyl group. M.t. 114-119°C V.p. 7.7 x 10-6 mbar. Non-corrosive. Solubility: At 20-25°C. in ethanol 150 g/l; acetone >200 g/l. Pol-Chwastox Extra*: Density 1.18-1.21 g/ml at 20°C.
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Uses:
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Translocated herbicide in small grains, rice, peas, grassland, sugar cane, tree crops, turf, and noncrop areas for postemergent control of many annual and perennial broadleaf weeds.
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Toxicity:
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(Rat): Acid Oral LD501160 mg/kg; dimethylamine salt 1000 mg/kg; isooctyl (2-ethylhexyl) ester 1606 mg/kg. Acid Inhalation LC50 >6.36 mg/l; dimethylamine salt >4.72 mg/l, isooctyl (2-ethylhexyl) ester >4.5 mg/l. (Mouse): Oral 550 mg/kg. (Rabbit): Acid Dermal LD50 >4000 mg/kg; isoocytl (2-ethylhexyl) ester and dimethylamine salt >2000 mg/kg. |