Overview
4-Thiol, also known as p-thiophenol or 4-mercaptophenol, is an organic compound containing a thiol functional group attached to a benzene ring. It is widely used in chemical synthesis due to its reactivity, particularly in pharmaceuticals and polymer industries. The compound is characterized by its distinctive sulfur odor and moderate volatility. 4-Thiol is commonly synthesized through the reduction of corresponding disulfides or substitution reactions involving halobenzenes. Its applications span multiple industries, making it a valuable intermediate in B2B chemical trade.
Physical and Chemical Properties
4-Thiol is a colorless to pale yellow liquid with a density of approximately 1.08 g/cm³. It is soluble in common organic solvents such as ethanol, ether, and benzene but has limited solubility in water. The thiol group (-SH) makes it highly reactive, particularly in nucleophilic substitution and oxidation reactions. The boiling point of 4-thiol is around 200°C, and it exhibits moderate volatility. Its reactivity with oxidizing agents and metals requires careful handling and storage. The compound's stability under normal conditions makes it suitable for various industrial applications.
Main Applications
4-Thiol is primarily used as an intermediate in the synthesis of pharmaceuticals, agrochemicals, and specialty chemicals. Its thiol group is instrumental in creating sulfur-containing compounds, which are prevalent in drug development. Additionally, it serves as a vulcanizing agent in the rubber industry, enhancing the durability of rubber products. In the polymer industry, 4-thiol is used to modify polymer chains, improving their mechanical properties. It also finds applications in the production of adhesives, coatings, and corrosion inhibitors. The versatility of 4-thiol underscores its importance in industrial chemistry.
Safety and Storage
4-Thiol is toxic if ingested or inhaled and can cause skin and eye irritation. Proper personal protective equipment (PPE), including gloves and goggles, should be worn when handling this chemical. Adequate ventilation is essential to prevent inhalation of vapors. Storage conditions require a cool, dry place away from oxidizing agents and strong acids. Containers should be tightly sealed to prevent leakage and evaporation. In case of spillage, absorb with inert material and dispose of according to local regulations.
B2B Procurement Guide
When procuring 4-thiol, buyers should prioritize suppliers who provide detailed product specifications, including purity levels (typically 98% or higher). Requesting a Safety Data Sheet (SDS) is crucial for compliance with safety regulations. Bulk purchases may offer cost advantages, but storage capacity should be considered. Reliable suppliers should have a track record of consistent quality and timely delivery. Buyers are advised to verify certifications and test reports to ensure the product meets their specific application requirements. Prices vary depending on quantity and supplier, so obtaining multiple quotes is recommended.
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