N-Methylation, selective

Aresin Arezin Arezine BRN 2212523 Caswell No. 207D 3-(4-Chlorophenyl)-1-methoxy-1-methylurea 3- 4-Chlorphenyl)-1-methoxy-1-methylharnstoff N-(4-Chloro-phenyl)-N -methoxy-N-methylurea EINECS 217-129-5 EPA Pesticide Chemical Code 207500 HOE 02747 HOE 2747 HSDB 5030 Monolinuron Monorotox Premalin Urea, 3-(p-chlorophenyl)-1-methoxy-1-methyl- Urea, N -(4-chlorophenyl)-N-methoxy-N-methyl-. Selective systemic herbicide used to control broad-leaved weeds and some annual grasses in vegetable crops such as potatoes and leeks. Crystals mp = 80-83" soluble in H2O (735 mg/l), organic solvents LD50 (rat orl) = 1660 mg/kg. Hoec/isf UK Ltd. 

Urea, N-butyl-N -(3,4-dichlorophenyl)-N-methyl-. Selective herbicide, absorbed through the roots, inhibits photosynthesis. Used for pre-emergence control of annual broad-leaved weeds and grasses in beans, peas, lucerne, garlic, cereals, beets, strawberries and ornamentals, and in forestry. Crystals mp = 102-103° soluble in H2O (5 mg/l), sparingly soluble in hydrocarbon solvents LDso (rat orl) >11000 mg/kg. DuPont UK. 

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