Appearance: Yellow or orange crystalline powder

Identification:  A₂₅₆/A₃₆₅=2.80~3.00

Purity( HPLC ): 98% min.
Content:  97.0%-102.0%（on the anhydrous basis）

Water: 8.5% max.

Residue on ignition: 0.2% max.

Packing:  25kg /fibre drum