1,3,5-Trimethyl-1H-pyrazole-4-carboxylic acid(CAS: 1125-29-7)

1,3,5-Trimethyl-1H-pyrazole-4-carboxylic acid is a white crystalline solid with a molecular weight of approximately 208.21 g/mol. It is moderately soluble in water and ethanol. It is moderately reactive, forming amides and esters readily. It is used in various chemical syntheses and as a starting material in pharmaceutical and polymer industries.

1,3,5-Trimethyl-1H-pyrazole-4-carboxylic acid is synthesized by various methods, including Hofmann degradation of 1,3,5-trimethylpyrazine. Commonly, it involves the use of strong acids like sulfuric acid, with high yields and good selectivity. The reaction is typically carried out in a fume hood for safety reasons.

1,3,5-Trimethyl-1H-pyrazole-4-carboxylic acid is widely used in pharmaceuticals, where it serves as a precursor for drug development. It is also utilized in the synthesis of polymers and as a component in sensor technology. Additionally, it finds applications in the semiconductor industry for its structural and reactivity properties.

When handling 1,3,5-Trimethyl-1H-pyrazole-4-carboxylic acid (CAS: 1125-29-7), it is essential to wear appropriate personal protective equipment (PPE) including gloves, goggles, and protective clothing. The compound should be stored in a cool, dry place and handled in a fume hood to minimize exposure. In case of a spill, consult the Safety Data Sheet (SDS) for specific guidelines on cleanup procedures.