Items

Standard

Analysis data

Appearance

White to off-white powder

conforms

Specific Rotation [20/D]

(C=4 in CH3OH)

+22o to +26o

+24.49o

Melting point

187-190℃

188℃

Heavy Metals (Pb)

Not more than 20 PPM

<20ppm

Arsenic (As2O3)

Not more than 2 PPM

<2ppm

Loss on Drying

Not more than 0.50%

0.25%

Residue on Ignition

Not more than 0.2%

0.09%

Assay

Not less than 98.5%

99.0%