Kojic acid (CAS 501-30-4) is a mild inhibitor of the formation of pigment in plant and animal tissues, and is used in food and cosmetics to preserve or change colors of substances. It forms a bright red complex with ferric ions.
Kojic acid
CAS No.: 501-30-4
Synonyms : 5-Hydroxy-2-hydroxymethyl-4-pyrone; 5-Hydroxy-2-(hydroxymethyl)-4H-pyran-4-one
Molecular Formula C6H6O4
Molecular Weight 142.11
CAS Number 501-30-4
EINECS/ELINCS 207-922-4
Item | Specification |
Kojic Acid Dipalmitate | ≥98% |
Appearance | Off-white crystalline powder |
Melting point | 92℃-96℃ |
Ignition residue | <0.5% |
Color reaction of ferric chloride | Negative |
Loss on drying | ≤0.5% |
Arsenic | ≤2ppm |
Heavy metals | ≤10ppm |
Sulfated ash | ≤0.5% |
Solubility | Easily dissolve in tetrahydrofuran and hot ethanol |
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