2-Chloro-5,6-dimethylnicotinic acid(CAS: 120003-75-0)

2-Chloro-5,6-dimethylnicotinic acid is a white crystalline solid with a molecular weight of approximately 214.64 g/mol. It is slightly soluble in water and more soluble in organic solvents like ethanol and acetone. The compound is moderately reactive, particularly towards nucleophiles and bases. It can be stored at room temperature and should be protected from light to prevent degradation.

2-Chloro-5,6-dimethylnicotinic acid can be synthesized by the reaction of nicotinic acid with chloromethyl methyl ether in the presence of a base like sodium hydroxide. The synthesis typically involves a condensation reaction followed by a chlorination step. The yield is around 70-80%, and the reaction is carried out under mild conditions to ensure selectivity.

2-Chloro-5,6-dimethylnicotinic acid is primarily used in the pharmaceutical industry as an intermediate in the synthesis of various drugs. It is also utilized in the polymer industry for modifying polymer properties and in the sensor industry for developing gas sensors. Additionally, it has applications in semiconductor manufacturing for etching and cleaning processes.

When handling 2-Chloro-5,6-dimethylnicotinic acid, it is crucial to wear appropriate personal protective equipment, including gloves, goggles, and a lab coat. The compound should be stored in a cool, dry place away from direct sunlight and heat sources. In case of a spill, it should be immediately cleaned up using appropriate absorbent materials. For more detailed safety information, refer to the Material Safety Data Sheet (MSDS).