Kojic Acid CAS 501-30-4

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Kojic Acid CAS 501-30-4

Kojic acid is an organic acid with an anti-bacteria function. Its edible grade safety makes its wide application in food, pharmaceutical, pest control, and whitening cosmetic products.

$25.00 – $30.00 /Kilo


Kojic acid’s excellent anti-bacteria property, kojic acid can be used in food preservation, anti-biotics, and pest control. And the wide application in whitening cosmetics results from its melanin prevention functions.

Chemical property:

Product nameKojic acid
CAS NO.501-30-4
Molecular formulaC6H6O4
Molecular weight142.11
EINECS NO.207-922-4
Melting point152-155°C
Boiling point179.65°C
Refractive index1.4434
StorageRefrigerator, in dry and cool place, away from heat and light.
Acidity coefficient (pKa)7.9 (at 25°C)
AppearanceWhite to beige-brown Crystalline Powder
SolubilitySoluble in water
Maximum wavelength (λmax)269nm (CHCl3) Merck14, 5317BRN120895
StabilityStable and Combustible.Incompatible with strong oxidizing agents.

1. Food additives: Kojic acid is an excellent food preservative because of its good anti-bacteria, preservation, freshness retaining color protection, and oxidation resistance property. It can also be used as fragrances, spices in food.
2. Whitening cosmetic and food: cosmetic products(such as creams, lotions, face wash, mask powder, powder cake…) with kojic acid has the function of skin protection, moisturizing, whitening(kojic acid can effectively prevent the formation of melanin), radiance, sunscreen, spot removing, wrinkle removing, anti-dandruff…
3. Pharmaceutical: kojic acid can be used as an ingredient to produce antibiotic like cephalosporin.
4. Pest control: Kojic acid is with good adhesion and little damage on plants, and good treatment on plant mycosis while is non-toxic on the human body. It is also an activator of nicotinic insecticide. Individually used as an insecticide, kojic acid kills insects in a way that affects the regeneration of insects, with no harm to human beings, animals, and environment.


Physical Analysis
DescriptionLight Yellow CrystalsComplies
Mesh Size100 % pass 80 meshComplies
Ash≤ 5.0%2.85%
Loss on Drying≤ 5.0%2.85%
Chemical Analysis
Heavy Metal≤ 10.0 mg/kgComplies
Pb≤ 2.0 mg/kgComplies
As≤ 1.0 mg/kgComplies
Hg≤ 0.1 mg/kgComplies
Microbiological Analysis
Residue of PesticideNegativeNegative
Total Plate Count≤ 1000cfu/gComplies
Yeast&Mold≤ 100cfu/gComplies

Related products:

FunctionProduct Name:Spec.CAS.
Skin whiteningAlpha-Arbutin99%84380-01-8
L-Glutathione Reduced98%70-18-8
Kojic acid dipalmitate99%79725-98-7
MoisturizingAloe vera gel froze powder100:1. 200:1 
Hyaluronic AcidMolecular weight (0.6-1.4)X106 
Coenzyme Q1098%303-98-0
Astaxanthin (natural)2%,3%,5%,10% 


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