Chemtrade International



    Kojic acid conventionally named 2-hydroxmethyl-5-hychoxy-r-pyrone, is a white or cream-colored acicular crystal. It easily dissolves in water, alcohol and acetone, slightly dissolves in ether, ethyl acetate, chloroform and pyridine, and does not dissolve in benzene. Molecular weight: 142.1, Melting point: 153-156'C,Molecular formula: C6H6O4, CAS no: 501-30-4, Toxicity test data: LD502500-350Omg/kg
2. Main use and application:
(1) Daily chemicals material:
    Because Kojic acid can inhibits caseins synthesis, then inhibits skin melanin formation, Kojic acid and it's derivatives are widely used in high-quality brightening cosmetic, bath cream midtoothpaste. The products containing Kojic acid can treat freckle, acne, pigmentation and macula effectively without any toxic and bad results, At present, Kojic acids use level added in cosmetic amounts to 0.2-1.0 percent.
(2) Medicine material:
    Kojic acid and it's derivatives are used as an important material in antibiotic - cethamycin, anodyne, and antiphlogistic production.
(3) Food additive:
    Kojic acid and it's derivatives work as antiseptic, antioxidant, preservative and color stabilizer in meat processing, also act as useful materials of food aromatize - maltol and ethyimaltol.
(4) Preservative and color stablizer of cut-flower:
    Kojic acid and it's derivatives are added to cub-flower to keep the flower colorful and fresh.
(5) Film despecking agent and iron analysis reagent.
(6) Non-toxic to person and livestock, pollution-free pesticide in insecticide production.
3. Packing:
In tinfoil bag: 1.0kg/bag; 2.0kg/bag; 5.0kg/bag; 25 kgs drums etc.

Specifications for Kojic Acid

Clarity of Solution(5%)
Melting Point
Loss on Drying
Residue on Ignition
Heavy Metals (Pb)
Arsenic (As)
Iron (Fe)
White or cream colored acicular crystal
99% min.
Colorless and transparent
153 -156℃
0.5% max.
0.1% max.
0.0003% max.
0.0001% max.
0.001% max.
0.005% max.

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