Appearance £º white to off-white Powder

Assay(HPLC):   99% min.

MP: 272-274¡æ

Specific Rotation [a]_D²⁰ : 85.0¡À1 £¨C=1£¬H₂O£©

Moisture: 0.5% max.

Assay£¨Br-Schöniger£©: 98-102% (w/w)

Assay£¨Acid Titration£©: 98-102% (w/w)