Overview
3,4-Dihydroxybenzophenone (3,4-DHBP) is an organic compound belonging to the benzophenone family. It is widely recognized for its role as a UV absorber and antioxidant in industrial and pharmaceutical applications. The compound is synthesized through controlled oxidation or condensation reactions, yielding a stable crystalline product. Its dual hydroxyl groups enhance its reactivity and solubility in polar solvents, making it versatile for chemical modifications. As a B2B commodity, it is primarily supplied in powder or crystalline form, with purity levels critical for end-use performance.
Physical and Chemical Properties
3,4-Dihydroxybenzophenone exhibits a molecular weight of 214.22 g/mol and typically appears as a light yellow to white powder. It has a melting point of 144–146°C and a density of approximately 1.25 g/cm³. The compound is soluble in organic solvents like ethanol and acetone but has limited solubility in water. Its chemical stability under UV exposure and heat makes it suitable for applications requiring prolonged durability. The hydroxyl groups contribute to its antioxidant properties, enabling use in protective coatings and stabilizers.
Main Applications
The primary use of 3,4-DHBP is as a UV stabilizer in plastics, coatings, and adhesives, where it prevents degradation from sunlight. In pharmaceuticals, it serves as an intermediate for synthesizing drugs with antioxidant or photoprotective effects. The cosmetics industry incorporates it into sunscreens and anti-aging formulations. Additionally, it is employed in organic synthesis to create complex molecules for agrochemicals and specialty chemicals. Its versatility and efficacy in low concentrations drive demand across these sectors.
Safety and Storage
3,4-Dihydroxybenzophenone requires careful handling due to potential skin and eye irritation. Personal protective equipment (PPE), including gloves and goggles, is recommended during use. Storage should be in tightly sealed containers, away from direct sunlight and moisture, to prevent degradation. Regulatory compliance varies by region; suppliers must provide SDS (Safety Data Sheets) detailing hazards and first-aid measures. Disposal should follow local environmental guidelines to avoid contamination.
B2B Procurement Guide
When procuring 3,4-DHBP, prioritize suppliers with ISO or GMP certifications to ensure quality consistency. Key specifications include purity (≥98%), CAS number verification (10425-11-3), and batch-specific COA (Certificate of Analysis). Bulk buyers should negotiate pricing tiers for orders above 50 kg. Logistics considerations include climate-controlled shipping for temperature-sensitive batches. Sample testing is advised to confirm suitability for intended applications before large-scale purchases.
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