Chengdu Beyond Chemical Co., Ltd.

KOJIC ACID--------------------------------------------------------------------------------------------------------------------------------------------------------- CAS No.: 501-30-4---------------------------------------------------------------------------------------------------------------------- ----------------------- Character: Named 5-hydroxy-2-hydroxymethyl-1,4-pyrone, is a white or off white needle-like crystal. It easily dissolves in water, alcohol and acetone, slightly dissolves in ether, ethyl acetate, chloroform and pyridine, and does not dissolve in benzene.---------------------------------------------------------------------------- ----------------------------------------------------------------------- Molecular Formula: C6H6O4----------------------------------------------------------------------------------------------------- -------------------- Specification------------------------------------------------------------------------------------------------------------------------- ------------------------- ITEM--------------------------------------------------SPECIFICATION------------------------------------------------------------ ------------------------ APPEARANCE---------------------------------------WHITE OR OFF WHITE CRYSTALS---------------------------------- ------------------------ ASSAY------------------------------------------------89.0% MIN------------------------------------------------------------------ --------------------------- LOSS ON DRYING---------------------------------0.5% MAX-------------------------------------------------------------------- ---------------------------- RESIDUE ON IGNITION--------------------------0.1% MAX--------------------------------------------------------------------- ---------------------------- IRON---------------------------------------------------10 PPM MAX----------------------------------------------------------------- --------------------------- HEAVY METALS (PB)-----------------------------3 PPM MAX------------------------------------------------------------------- ---------------------------- ARSENIC----------------------------------------------1 PPM MAX------------------------------------------------------------------- ---------------------------- CHLORIDES ------------------------------------------50 PPM MAX---------------------------------------------------------------- --------------------------- CLARITY OF SOLUTION--------------------------COLORLESS AND TRANSPARENT------------------------------------ -------------------------- PATHOOTENS--------------------------------------NONE

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