Synthetic Route of 1837-55-4, Chemical engineers ensure the efficiency and safety of chemical processes, adapt the chemical make-up of products to meet environmental or economic needs, and apply new technologies to improve existing processes. 1837-55-4, Name is 3,5-Dichloropyridazine, molecular formula is C4H2Cl2N2. In a Patent，once mentioned of 1837-55-4
Disclosed are certain 3-pyrazolyloxypyridazines, compositions thereof which are herbicidal and methods of using such composition for controlling undesired plants. Also disclosed are mixtures of such pyridazines and acetanilide herbicides, to which mixture a safener may be added, if desired. Intermediate compounds useful in preparing the pyrazolyloxypyridazines are also disclosed.
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Reference：
Pyridazine – Wikipedia,
Pyridazine | C4H4N1171 – PubChem