4-Amino-5-(ethylsulfanyl)-2-methoxybenzoic acid(CAS: 71675-86-0)

4-Amino-5-(ethylsulfanyl)-2-methoxybenzoic acid is a crystalline solid with a molecular weight of approximately 278.3 g/mol. It has a low solubility in water (0.01 g/100 mL at 25°C) and a high solubility in organic solvents like methanol and acetonitrile. This compound is reactive towards nucleophiles and can undergo substitution reactions. It is stable under normal conditions but should be stored in a dry environment to prevent hydrolysis.

4-Amino-5-(ethylsulfanyl)-2-methoxybenzoic acid is typically synthesized via a multi-step procedure involving the protection of the hydroxyl group of 2-methoxybenzoic acid followed by sulfenylation with ethanethiol, followed by deprotection and amidation. Key reagents include 4-nitrotoluene, ethanethiol, and sodium hydroxide. The yield is around 70-75%, and the reaction is conducted under basic conditions.

4-Amino-5-(ethylsulfanyl)-2-methoxybenzoic acid is primarily used in the pharmaceutical industry as an intermediate for the synthesis of various drugs. It is also utilized in the polymer industry for the development of advanced materials with specific properties. Additionally, it is used in the sensor and semiconductor industries for manufacturing high-performance electronic components.

When handling 4-Amino-5-(ethylsulfanyl)-2-methoxybenzoic acid, it is important to wear appropriate personal protective equipment (PPE) including gloves, goggles, and a lab coat. The substance should be handled in a fume hood to minimize exposure. Spills should be cleaned up immediately using appropriate absorbent materials. For detailed safety information, refer to the Safety Data Sheet (SDS) and follow all laboratory safety protocols.