Overview
Diphenic Acid, chemically known as Biphenyl-2,2'-dicarboxylic acid, is a white crystalline solid derived from biphenyl. It is primarily used in organic synthesis and as an intermediate in pharmaceutical manufacturing. The compound is known for its stability and relatively high melting point, making it suitable for various industrial applications. Diphenic Acid is synthesized through the oxidation of biphenyl or related compounds. Its molecular structure features two carboxylic acid groups attached to a biphenyl core, which enhances its reactivity in chemical reactions. This makes it a valuable building block in the production of more complex organic molecules.
Physical and Chemical Properties
Diphenic Acid appears as a white crystalline powder with a melting point of approximately 228-230°C. It is slightly soluble in water but dissolves more readily in organic solvents such as ethanol, acetone, and dimethyl sulfoxide (DMSO). The compound is stable under normal storage conditions but should be protected from moisture and direct sunlight to prevent degradation. The molecular weight of Diphenic Acid is 242.23 g/mol, and its molecular formula is C14H10O4. Its key chemical property is the presence of two carboxylic acid groups, which allow it to participate in reactions such as esterification and amidation. These functional groups also contribute to its acidity, making it useful in buffer solutions and other pH-dependent applications.
Main Applications
Diphenic Acid is widely used as an intermediate in the synthesis of pharmaceuticals, agrochemicals, and specialty chemicals. Its ability to form esters and amides makes it a versatile reagent in organic chemistry. For example, it can be used to produce dyes, polymers, and other high-value compounds. In the pharmaceutical industry, Diphenic Acid serves as a precursor for active pharmaceutical ingredients (APIs). Its derivatives are explored for their potential biological activities, including anti-inflammatory and antimicrobial properties. Additionally, the compound is used in academic and industrial research for developing new chemical entities and studying reaction mechanisms.
Safety and Storage
Diphenic Acid should be handled with care to avoid exposure. Personal protective equipment (PPE), including gloves, goggles, and lab coats, is recommended when working with this chemical. Inhalation, ingestion, or skin contact can cause irritation, so proper ventilation and hygiene practices are essential. Storage conditions are critical to maintaining the compound's stability. It should be kept in a cool, dry place, away from moisture and direct sunlight. Containers should be tightly sealed to prevent contamination and degradation. Always refer to the Material Safety Data Sheet (MSDS) for specific safety guidelines and first-aid measures.
B2B Procurement Guide
When procuring Diphenic Acid, buyers should prioritize suppliers with a proven track record of quality and reliability. Key considerations include verifying the compound's purity, typically through a Certificate of Analysis (COA), and ensuring the supplier adheres to Good Manufacturing Practices (GMP). Price negotiations should account for factors such as order volume, packaging requirements, and delivery timelines. Bulk purchases often attract discounts, but buyers should balance cost savings with storage capabilities. Additionally, it is advisable to establish long-term relationships with trusted suppliers to ensure consistent quality and availability.
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