3-(Chloromethyl)-1H-pyrazole hydrochloride (1:1)(CAS: 69658-97-5)

3-(Chloromethyl)-1H-pyrazole hydrochloride (CAS: 69658-97-5) is a crystalline solid with a molecular weight of approximately 192.58 g/mol. It has a pKa of about 1.2 and is highly soluble in water. This compound exhibits moderate reactivity with nucleophiles and is often used in organic synthesis. It is stable under normal storage conditions but should be handled with care to avoid hydrolysis.

3-(Chloromethyl)-1H-pyrazole hydrochloride is typically synthesized by the reaction of 3-chloromethylpyrazole with hydrochloric acid. This process involves heating 3-chloromethylpyrazole with concentrated hydrochloric acid to produce the hydrochloride salt. The reaction is exothermic and requires proper cooling to maintain optimal conditions. The yield is generally high, and the product is purified by recrystallization from water.

3-(Chloromethyl)-1H-pyrazole hydrochloride (CAS: 69658-97-5) finds applications in pharmaceuticals, where it is used as a precursor for medicinal chemistry and drug discovery. It is also utilized in the synthesis of polymers and sensors. In the semiconductor industry, it serves as a precursor for organic materials in organic light-emitting diodes (OLEDs).

When handling 3-(Chloromethyl)-1H-pyrazole hydrochloride (CAS: 69658-97-5), it is important to wear appropriate personal protective equipment (PPE) such as gloves, safety goggles, and a lab coat. This compound should be handled in a well-ventilated area or a fume hood to prevent exposure to vapors. Spills should be carefully cleaned up using appropriate absorbents and disposed of according to local regulations. Always consult the Material Safety Data Sheet (MSDS) for detailed handling and disposal information.