Appearance:Light yellow needle-like crystal
Assay(HPLC): 98.0%min
Loss on drying: 0.5%max.
Sulphated ash: 0.1%max.
Heavy metal: 10ppm max.
Total impurities: 2.0%max. 

Package: 25kg/fibre drum

Application: Used as intermediates of MeLatonin.