Overview
Sym-Diphenylurea, commonly referred to as N,N'-Diphenylurea or Carbanilide, is an organic compound with the formula C13H12N2O. It is a white crystalline powder that finds applications in various industrial processes, particularly in pharmaceuticals and dye manufacturing. The compound is known for its stability and relatively low reactivity under normal conditions. Sym-Diphenylurea is synthesized through the reaction of aniline with phosgene or urea. Its molecular structure features two phenyl groups attached to a urea backbone, which contributes to its unique chemical properties. The compound is classified as a urea derivative and is often used as an intermediate in organic synthesis.
Physical and Chemical Properties
Sym-Diphenylurea exhibits a melting point range of 235-238 °C, making it suitable for high-temperature applications. Its density is approximately 1.24 g/cm³, and it is slightly soluble in water but more soluble in organic solvents like ethanol and acetone. The compound is stable under normal storage conditions and is non-flammable, reducing handling risks. The crystalline structure of Sym-Diphenylurea contributes to its stability and ease of handling in industrial settings. Its solubility profile allows for versatile use in various solvent-based processes. The compound's low volatility and high melting point make it ideal for applications requiring thermal stability.
Main Applications
Sym-Diphenylurea is primarily used as an intermediate in the pharmaceutical industry, where it serves as a building block for more complex molecules. It is also employed in the production of dyes, particularly those used in textiles and coatings. The compound's stability and reactivity make it valuable in organic synthesis. In addition to its industrial uses, Sym-Diphenylurea has been explored for potential applications in agrochemicals and specialty chemicals. Its ability to form stable derivatives makes it a versatile component in research and development. The compound's relatively low cost and availability further enhance its appeal for large-scale manufacturing.
Safety and Storage
While Sym-Diphenylurea is generally stable, precautions should be taken to avoid inhalation or skin contact. The use of protective equipment, such as gloves and masks, is recommended when handling the compound. Proper ventilation is essential to minimize exposure to dust particles. Storage conditions should include a cool, dry environment away from direct sunlight. The compound should be kept in tightly sealed containers to prevent moisture absorption and contamination. In case of accidental exposure, rinse affected areas with water and seek medical advice if necessary.
B2B Procurement Guide
When procuring Sym-Diphenylurea, buyers should prioritize suppliers with verified certifications and a track record of quality. Purity levels, typically ranging from 98% to 99.5%, should be confirmed through analytical certificates. Bulk purchases often result in cost savings, but storage capacity should be considered. Lead times and shipping conditions are critical factors, especially for international orders. Buyers should also inquire about packaging options to ensure the product arrives in optimal condition. Establishing long-term relationships with reliable suppliers can streamline procurement processes and ensure consistent quality.
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