Kojic Acid

Description

CTFA name: 5-hydroxy-2-hydroxymethyl-1,4-pyrone

Cas no: 501-30-4

Molecular weight: 142.1

Toxicity: LD502500-3500mg/kg

Dissolving water, alcohol, acetone and slightly dissolving ether second ester of second acid, chloroform and pyridine, non-dissolving benzene.

Specification

Appearance White Crystal or Powder

Assay 99.0% min

Melting Point 152-155 deg. C

Loss on Drying 0.5% max

Residue on Ignition 0.1% max

Chloride 0.005% max

Heavy Metals 0.001% max

Iron 0.001% max

Arsenic 0.0001% max

Microbiological Test

Bacteria 3000CFU/g max

Fungi 50CFU/g max

Colon bacillus Negative

Package

Packing in 25kg cardboard drum, inner sealed with 25kg aluminum foil bag.

Storage

Storage out of sunlight, sealed for two years.