4-Aminobenzoic Acid Powder

4-aminobenzoic acid, also known as p-aminobenzoic acid (PABA), is a precursor used in the synthesis of aromatic amines and azo dyes.
4-Aminobenzoic acid It is an important substrate for the synthesis of various biological scaffolds. From the pharmacological significance of biological diseases, although it is not a vitamin, it is still called a vitamin B or H.

It is an important part of the substances necessary for the growth and division of the body cells, plays an irreplaceable role in the metabolism of life, and is very high in yeast, liver, bran and malt

Start with p-nitrobenzoic acid through catalytic hydrogenation. In a 1000 ml beaker, add industrial-grade p-nitrobenzoic acid and water, stir and adjust the pH to 6-7 with 22% sodium hydroxide. Then add Raney nickel and pump the mixture into a swinging autoclave. In this environment, first replace it with hydrogen and nitrogen twice each, and then pressurize it to 3.43MPa. React for about 5 hours under the conditions of pressure 3.43-2.54MPa and temperature 134-140°C until the hydrogen pressure no longer decreases, and the reaction is considered complete. After the reaction is completed, filter and dry to obtain the final p-aminobenzoic acid product, with a yield of more than 80%.

Xi 'an Tongze Biology recommends the above production methods.

1.Used for the field of medicine

4-aminobenzoic acid can be used as an intermediate in drug synthesis, and participate in the synthesis of folic acid, which is of great significance to human metabolism and cell growth.As a vitamin supplement, the usual dose is 50-100 mg/day.

Ointments commonly used for external use in skin diseases.

For local anesthesia, used in combination with procaine injection

2.Used for Dye chemical industry

Used in the synthesis of photochromic materials, as a UV absorber, added to plastics (such as PVC) or coatings to delay photodegradation in the form of powder.

3.Used for Cosmetics field

4-aminobenzoic acid has certain antioxidant properties, which can prevent skin aging and pigmentation.4-aminobenzoic acid also reduces skin inflammation and anti-ultraviolet radiation, absorbing UVA and UVB rays to prevent them from penetrating deep into the skin and causing damage ‌. It is also used in the preparation of cosmetic fragrances ‌

(1) Help synthesize folate,Protein plays an important role in the human body
(2) Help dry body pantothenic acid absorption, combined with pantothenic acid can restore white hair color
3) 4-aminobenzoic acid plays an antibacterial role by interfering with bacterial protein synthesis, which can stabilize cell membranes and reduce inflammation, thus relieving itching symptoms. It can enhance collagen synthesis, accelerate epidermal cell proliferation, and help wound repair
4) 4-aminobenzoic acid can inhibit the formation of melanin, reduce pigmentation, so as to achieve whitening effect.
 

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