Overview
p-Ethylphenol, also known as 4-Ethylphenol (4-EP), is an organic compound classified as a phenol derivative. It is commonly found in natural sources such as wine, where it contributes to aroma, but is also synthesized industrially for various applications. The compound is notable for its aromatic properties and reactivity, making it valuable in chemical synthesis. In industrial settings, p-Ethylphenol serves as a precursor in the production of resins, pharmaceuticals, and fragrances. Its ability to undergo electrophilic substitution reactions makes it versatile for further chemical modifications. Due to its distinct odor, it is sometimes used in flavor and fragrance formulations.
Physical and Chemical Properties
p-Ethylphenol is a colorless to pale yellow liquid at room temperature, with a characteristic phenolic odor. It has a molecular weight of 122.16 g/mol and a density of 1.012 g/cm³. The compound melts at 42-44 °C and boils at 218-219 °C, making it relatively stable under standard conditions. Its solubility profile includes miscibility with most organic solvents like ethanol and ether, but only slight solubility in water. p-Ethylphenol is reactive with strong oxidizers and can form hazardous byproducts, requiring careful handling. Its volatility and aromatic nature make it suitable for applications where odor or reactivity is desired.
Main Applications
The primary use of p-Ethylphenol is in the fragrance and pharmaceutical industries. In perfumery, it contributes to smoky or woody notes, often found in high-end fragrances. It is also used as an intermediate in synthesizing other phenolic compounds, including antioxidants and disinfectants. In pharmaceuticals, p-Ethylphenol serves as a building block for active pharmaceutical ingredients (APIs) and preservatives. Additionally, it finds niche applications in agrochemicals and resin production. Its role in wine and food aromas, though minor, is of interest to the food science sector.
Safety and Storage
p-Ethylphenol poses moderate health risks, including skin and eye irritation upon contact. Inhalation or ingestion can lead to respiratory or gastrointestinal distress. Proper personal protective equipment (PPE), such as gloves and goggles, is recommended during handling. Storage should be in tightly sealed containers, away from heat and oxidizers, in a cool, ventilated area. Spills should be contained using inert absorbents and disposed of according to local regulations. Compatibility with storage materials (e.g., glass or stainless steel) should be confirmed to avoid degradation.
B2B Procurement Guide
When procuring p-Ethylphenol, prioritize suppliers with certifications (e.g., ISO, GMP) to ensure quality and consistency. Key specifications to verify include purity (typically ≥98%), residual solvents, and trace impurities, especially for pharmaceutical or fragrance use. Bulk purchases may offer cost advantages, but storage capacity and shelf-life considerations should be evaluated. Request safety data sheets (SDS) and technical documentation to confirm compliance with regional regulations. For international shipments, ensure proper hazardous material labeling and transport protocols.
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