Chemistry is traditionally divided into organic and inorganic chemistry. name: 6-Chloropyridazine-3-carboxamide, The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent，Which mentioned a new discovery about 66346-83-6
There is provided a compound of formula (I): or a pharmaceutically acceptable salt thereof. There are also provided processes for the manufacture of a compound of Formula 1, and the use of a compound of Formula 1 as a medicament and in the treatment of cancer.
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Reference：
Pyridazine – Wikipedia,
Pyridazine | C4H4N2019 – PubChem