Kojic acid CAS 501-30-4

Kojic acid CAS 501-30-4 crystals are prismatic, needle-shaped, and colorless. Kojic acid is easily soluble in water, alcohol, and acetone, slightly soluble in ether, ethyl acetate, chloroform, and pyridine, and insoluble in most other solvents. It can be purified by crystallization in solvents such as acetone and ethyl acetate, or it can be sublimated under reduced pressure at 150-200°C. Kojic acid is unstable to light and heat. A 0.5% kojic acid solution was treated at 100°C for 3 hours at different pH values ​​or irradiated with sunlight for 5 hours. As a result, the solution turned pale yellow to yellowish brown in the pH range of 5-7, but did not change much at pH 4. Kojic acid reacts with ferric chloride to produce a special red color, and this method can be used to quantify kojic acid. Kojic acid can reduce Fehling’s reagent and silver nitrate ammonia. There is an alcoholic hydroxyl group near the carbonyl group in its molecular structure, which can form salts with a variety of metals, and other hydroxyl groups can form ether and ester derivatives.

Specification:

Application:

1. Cosmetics industry

Whitening and spot lightening: Kojic acid can inhibit the activity of tyrosinase and reduce the formation of melanin. It is often used in skin care products for whitening, lightening spots, freckles, sun spots and age spots.

Antioxidant: It has antioxidant properties, can reduce the generation of free radicals, and protect the skin from environmental pollution and ultraviolet damage.

Moisturizing: Kojic acid derivatives (such as kojic acid dipalmitate) have moisturizing effects and increase the moisture content of the skin.

2. Food industry

Food preservatives: Kojic acid, as a natural food preservative, can inhibit oxidation and corruption in food and extend the shelf life of food.

Food antioxidants: Prevent oxidation of fats and oils in food, maintain the freshness and nutritional value of food.

3. Pharmaceutical industry

Antibacterial and antifungal: Kojic acid has certain antibacterial and antifungal effects and can be used in skin medicines or to treat fungal infections.

Treatment of skin diseases: Due to its function of inhibiting the production of melanin, kojic acid is also used to treat diseases caused by excessive skin pigmentation, such as chloasma and pigmented skin diseases.

4. Agriculture and Industry

Pesticide intermediates: In agriculture, some derivatives of kojic acid can be used as intermediates for pesticides or herbicides.

Industrial bleaching agent: used for bleaching of industrial dyes and textiles.

Package:

25kg/drum