Description
Kojic Acid
Cas no.: 501-30-4, Formal name: 5-hydroxy-2-hydroxymethyl-1, 4-pyrone, Molecular weight: 142.1. Dissolving water, alcohol, acetone, and slightly dissolving ether second ester of second acid, chloroform and pyridine, non-dissolving benzene. Toxicity: ld502500-3500mg/kg.
Kojic Acid Quality Standards
Appearance Property Almost White Crystal or Crystalline Powder
Purity (%) 99.0 min
Melting Point (deg. C) 152-155
Loss on Drying (%) 0.5 max
Ignition Residue (%) 0.1 max
Chloride (%) 0.005 max
Heavy Metals (%) 0.001 max
Arsenic (%) 0.0001 max
Iron (%) 0.001 max
Microbiological Test Bacteria: 3000CFU/g max, Colon bacillus: Negative, Fungi: 50 CFU/g max
Packing: in tinfoil bag: 1.0kg/bag, 5.0kg/bag, 25.0kg/dump, etc.
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