Apprearance:                Almost white crystal or crystal powder                        Assay:                         ≥99%                   Melting point:                152-155°C                   Loss on Drying:             ≤0.5%                   Residue on Ignition:       ≤0.1%                   Chlorides:                    ≤0.005%                   Heavy Metals:              ≤0.001%                   Iron:                           ≤0.001%                   Arsenic:                       ≤0.0001%

Kojic acid