Overview
3,4-Dihydroxybenzaldehyde, commonly referred to as protocatechuic aldehyde, is a phenolic aldehyde derived from benzaldehyde. It features two hydroxyl groups at the 3 and 4 positions on the benzene ring, which contribute to its reactivity and utility in various chemical applications. This compound is widely recognized for its role as an intermediate in the synthesis of pharmaceuticals, agrochemicals, and other organic compounds. Its antioxidant properties make it valuable in research and industrial settings. The compound is typically synthesized through the oxidation of catechol or other related precursors. Its light yellow to brown crystalline form is stable under proper storage conditions but requires careful handling due to its reactive nature. The presence of hydroxyl groups enhances its solubility in polar solvents like water and ethanol, facilitating its use in diverse chemical reactions.
Physical and Chemical Properties
3,4-Dihydroxybenzaldehyde exhibits distinct physical and chemical properties due to its hydroxyl substituents. It has a molecular weight of 138.12 g/mol and a melting point ranging between 153-156 °C. The compound is soluble in water, ethanol, and ether, making it versatile for various solvent-based applications. Its light yellow to brown crystalline appearance is characteristic of many phenolic aldehydes. The hydroxyl groups at the 3 and 4 positions confer antioxidant activity, enabling the compound to act as a free radical scavenger. This property is particularly useful in pharmaceutical and cosmetic formulations. Additionally, the aldehyde group is reactive, allowing the compound to participate in condensation and oxidation reactions. These features make 3,4-Dihydroxybenzaldehyde a valuable building block in organic synthesis.
Main Applications
3,4-Dihydroxybenzaldehyde is primarily used as an intermediate in the synthesis of pharmaceuticals and agrochemicals. Its antioxidant properties make it a candidate for research into neuroprotective and anti-inflammatory agents. In agrochemicals, it serves as a precursor for herbicides and fungicides, leveraging its reactive functional groups. Beyond pharmaceuticals and agrochemicals, the compound finds applications in organic synthesis, particularly in the production of complex molecules like flavonoids and polyphenols. Its ability to participate in various chemical reactions, including oxidation and condensation, enhances its utility in laboratory and industrial settings. The compound's versatility underscores its importance in the chemical industry.
Safety and Storage
Proper handling and storage of 3,4-Dihydroxybenzaldehyde are essential due to its reactive nature. The compound should be stored in a cool, dry place, away from light and moisture to prevent degradation. Exposure to air and humidity can lead to oxidation or other undesirable reactions, compromising its purity and effectiveness. Safety precautions include wearing protective gloves, goggles, and clothing to avoid skin and eye contact. Inhalation of dust or vapors should be avoided, and adequate ventilation is recommended when handling the compound. In case of accidental exposure, immediate washing with water and seeking medical advice are advised. Proper disposal methods should be followed to minimize environmental impact.
B2B Procurement Guide
When procuring 3,4-Dihydroxybenzaldehyde, businesses should prioritize supplier reliability and product purity. High-purity grades (e.g., ≥98%) are typically required for pharmaceutical and research applications. It is advisable to request certificates of analysis (CoA) to verify the compound's specifications, including purity, melting point, and solubility. Bulk purchasing may offer cost advantages, but buyers should ensure proper storage conditions to maintain product integrity. Comparing prices from multiple suppliers can help secure competitive rates, typically ranging from $50-$100 per kilogram. Additionally, consider suppliers with a track record of timely delivery and quality assurance to avoid disruptions in production or research activities.
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