1. Kojic Acid 99% min 2. Molecular Formula: C6H6O4 3. Molecular Weight: 142.11 4. CAS NO. : 501-30-4

Kojic Acid

Chemical name: 5-hydroxy-2-hydroxymethyl-1,4-pyroneCAS NO. : 501-30-4          EINECS NO.: 207-922-4Molecular Formula: C6H6O4   Molecular Weight:  142.11

Specification:

Item	Specification	Results
Appearance Property	White Crystalline Powder	White Crystalline Powder
Assay,%           min	99.0	99.52
Melting Point,	152-155	153.5-153.9
Loss on Drying,%      max	0.5	0.18
Residue on Ignition,%   max	0.1	0.04
Chlorides (AS Cl),%  max	0.005	0.003
Heavy Metals(as Pb)%  max	0.001	0.0004
Iron(AS Pb),%   max	0.001	0.0004
Arsenic (as Fe),%    max	0.0001	0.00003
Microbiological Test	Bacteria 3000cfu/g    max Eumycetes  50cfu/g  max Coliform Group Negative	Accord with demand
Conclusion	Up to grade

Application: (1) Cosmetics: Kojic acid, (5-hydroxy-2-hydroxymethyl-1,4-pyrone, CAS: 501-30-4) is used for macula-removing and whitening.In the human skin, tyrosine is oxidized and polymerized with oxygen-derived free radicals under the catalytic action of tyrosinase and then synthesized to melanin. Kojic acid can inhibit tyrosinase synthesis, so it can largely inhibit the skin melanin formation; furthermore, kojic acid is safe and nontoxic and won’t cause white spot syndrome. Therefore, it has been widely added into the lotion, face mask, liquid cream and skin cream. Whitening cosmetics containing kojic acid are able to treat effectively the freckle, senile plaque, pigmentation and acne, etc. Kojic acid in concentration of 20ug/ml is able to inhibit 70~80%of the activity of many kinds of  tyrosinases (or polyphenoloxidase PPO) . recommendation usage for cosmetics: 0.2~1.0%.

Package:

1kg/Aluminium foil bag, 25kg/Fiber drum

Skin hitening Kojic Acid