What is 3,4-dihydroxybenzoic acid? If not engaged in related industries, presumably many people do not understand it, so, let’s have a simple understanding of it. 3, 4-dihydroxybenzoic acid, also known as protocatechuic acid, is a phenolic acid found naturally in many fruits and vegetables. It has good solubility in water, and can also be dissolved in ethanol and ether. Its molecular formula is C7H6O4, molecular weight is 154.12, CAS registration number is 99-50-3, melting point is about 200℃, and density is 1.54g/cm3.
At present, the appearance of 3, and 4-dihydroxybenzoic acid that we buy in the market is usually white to brown crystalline powder, which needs to be kept sealed to avoid discoloration when exposed to the air. If the ferric chloride solution is encountered, the color of 3, 4-dihydroxybenzoic acid will turn blue-green. When storing 3, and 4-dihydroxybenzoic acid, in addition to sealing it, it is recommended to store it in a cool and dark environment.
3, 4-dihydroxybenzoic acid has antibacterial, neuroprotective, snake venom detoxification, and other functions. Therefore, in recent years, it has been vigorously applied in medicine, health products, feed, and other industries. The market development and utilization space are expanding, and the output and market demand of 3, and 4-dihydroxybenzoic acid are constantly increasing.