CAS 103286-53-9

1H-Pyrazole-4-carbonyl chloride

Description:

1H-Pyrazole-4-carbonyl chloride, with the CAS number 103286-53-9, is a chemical compound characterized by its pyrazole ring structure, which is a five-membered aromatic heterocycle containing two nitrogen atoms. This compound features a carbonyl chloride functional group, making it a reactive acyl chloride derivative. It is typically a colorless to pale yellow liquid or solid, depending on its purity and form. The presence of the carbonyl chloride group indicates that it can participate in nucleophilic acyl substitution reactions, making it useful in organic synthesis, particularly for the preparation of various pyrazole derivatives and other functionalized compounds. Its reactivity also suggests that it should be handled with care, as it can release hydrochloric acid upon hydrolysis. Additionally, 1H-Pyrazole-4-carbonyl chloride may exhibit biological activity, which could be of interest in pharmaceutical research. Proper safety measures should be taken when working with this compound due to its potential hazards.

Formula: C₄H₃ClN₂O