Chemistry is traditionally divided into organic and inorganic chemistry. COA of Formula: C9H4Cl2FN, The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent，Which mentioned a new discovery about 941294-25-3
PYRIDINYL AND FUSED PYRIDINYL TRIAZOLONE DERIVATIVES
Disclosed are compounds of Formula 1, or pharmaceutically acceptable salts thereof, wherein R1, R2, R3, and R4 are defined in the specification. This disclosure also relates to materials and methods for preparing compounds of Formula 1, to pharmaceutical compositions which contain them, and to their use for treating Type I hypersensitivity reactions, autoimmune diseases, inflammatory disorders, cancer, non-malignant proliferative disorders, and other conditions associated with BTK.
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Reference：
Isoquinoline – Wikipedia,
Isoquinoline | C9H3722N – PubChem