



cosmetic
Product Name: | Kojic acid |
Synonyms: | 4H-Pyran-4-one, 5-hydroxy-2-(hydroxymethyl)-;4H-Pyran-4-one,5-hydroxy-2-(hydroxymethyl)-;5-hydroxy-2-(hydroxymethyl)-4h-pyran-4-on;kojic;Pyran-4-one, 5-hydroxy-2-(hydroxymethyl);2-HYDROXYMETHYL-5-HYDROXY-4-PYRONE;5-Hydroxy-2-(hydroxymethyl)-γ-pyrone;Kojic acid |
CAS: | 501-30-4 |
MF: | C6H6O4 |
MW: | 142.11 |
EINECS: | 207-922-4 |
Product Categories: | Pyridines;Cosmetics;Chelating Agents & Ligands;Herb extract;inhibitor;Fine Chemical;FINE Chemical & INTERMEDIATES;Heterocycles;Plant Oils, Toxins, Phenolic Acids & Derivatives;organic interm;VX:15689727968 |
Kojic acid Chemical Properties
Melting point | 152-155 °C (lit.) |
Boiling point | 179.65°C (rough estimate) |
density | 1.1712 (rough estimate) |
refractive index | 1.4434 (estimate) |
storage temp. | Refrigerator |
pka | 7.9(at 25℃) |
form | Crystalline Powder |
color | White to beige-brown |
Water Solubility | SOLUBLE |
λmax | 269nm(CHCl3)(lit.) |
Merck | 14,5317 |
BRN | 120895 |
Stability: | Stable. Combustible. Incompatible with strong oxidizing agents. |
CAS DataBase Reference | 501-30-4(CAS DataBase Reference) |
NIST Chemistry Reference | 5-Hydroxy-2-(hydroxymethyl)-4h-pyran-4-one(501-30-4) |
IARC | 3 (Vol. 79) 2001 |
EPA Substance Registry System | Kojic acid (501-30-4) |
Kojic acid Uses
1. A naturally occurring chelation agent.
2. hydroxystearate nonionic solubilizer
3. Converted to maltol and ethyl maltol, flavor-enhancing additives. Food additive to inhibit tyrosinase.
4. kojic acid is a skin-lightening agent that acts through anti-oxidant activity. Kojic acid is a tyrosinase inhibitor, although it is not as effective as licorice extract. When combined with allantoin and other proper ingredients in sunscreen preparations, the mixture can inhibit uV-caused erythema and accelerate wound healing. It is also found to be skin sensitizing and can be irritating.