Overview
Reagent grade p-Cresol, also known as 4-methylphenol, is a high-purity chemical compound primarily used in laboratory and industrial settings. It is a derivative of phenol and is characterized by its phenolic odor and crystalline form. The reagent grade designation indicates that it meets strict purity standards, making it suitable for analytical and research applications. p-Cresol is widely utilized in the synthesis of pharmaceuticals, dyes, and disinfectants due to its reactive phenolic group. Its high purity ensures minimal impurities, which is critical for sensitive chemical reactions. The compound is typically supplied in sealed containers to prevent contamination and degradation.
Physical and Chemical Properties
Reagent grade p-Cresol is a colorless to pale yellow crystalline solid with a distinct phenolic odor. It has a molecular weight of 108.14 g/mol and a density of 1.03 g/cm³. The compound melts at 32-34 °C and boils at 202 °C, making it stable under normal laboratory conditions. p-Cresol is soluble in water, alcohol, ether, and alkali solutions, which enhances its versatility in various chemical processes. Its phenolic hydroxyl group makes it reactive, particularly in electrophilic substitution reactions. The compound is also corrosive and requires careful handling to avoid skin and eye contact.
Main Applications
Reagent grade p-Cresol is a key intermediate in the pharmaceutical industry, where it is used to synthesize drugs such as antioxidants and antiseptics. Its antimicrobial properties make it a valuable component in disinfectants and preservatives. Additionally, p-Cresol is employed in the production of dyes and resins, where its reactive phenolic group facilitates polymerization. In laboratory settings, p-Cresol is used as a reagent for analytical purposes, including chromatography and spectrophotometry. Its high purity ensures accurate and reproducible results, making it a staple in research and quality control laboratories.
Safety and Storage
Reagent grade p-Cresol is toxic if ingested or inhaled and can cause severe skin and eye irritation. Proper personal protective equipment (PPE), including gloves, goggles, and lab coats, should be worn when handling the compound. Adequate ventilation is essential to prevent inhalation of vapors. The compound should be stored in a cool, dry, well-ventilated area away from oxidizing agents and incompatible materials. Containers must be tightly sealed to prevent moisture absorption and degradation. In case of spills, neutralize with a suitable absorbent and dispose of in accordance with local regulations.
B2B Procurement Guide
When purchasing reagent grade p-Cresol, B2B buyers should prioritize suppliers who provide a Certificate of Analysis (COA) and Safety Data Sheet (SDS). These documents ensure the product meets purity and safety standards. Buyers should also verify the supplier's reputation and compliance with industry regulations. Price negotiations should consider factors such as bulk discounts, shipping costs, and storage requirements. It is advisable to establish long-term relationships with reliable suppliers to ensure consistent quality and availability. Buyers should also stay informed about market trends and potential supply chain disruptions.
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