Item

Standard

Appearance

White or off-white crystalline powder

Specific Rotation

(C=2,5NHCL)

-26.0°～ -29.0

Chloride (Cl)

not more than 0.02%

Loss on drying

≤0.5%

Residue on Ignition

      not more than 0.2%                    

Heavy Metals(Pb)

not more than 10ppm

Assay

98.5 to 100.5%