AppearanceWhite or almost crystalline                 powder

Specific rotation[α]20/D

(C=8 in 6N HCl)+25°to +27°

Chloride (Cl)Not more than 0.05%

Sulfate (SO4)Not more than 0.03%

Heavy metal(Pb)Not more than 20ppm

Ammonium(NH4)Not more than 0.02%

Loss on dryingNot more than 3.0%

Residue on ignition(sulfated)Not more than 0.1%

Assay98.5% to 101.0%

PH5.5 to 7.0

Total Plate Count<1000 cfu / g

Yeast&Molds<100 cfu / g

SalmonellaAbsent/10g

E.ColiAbsent/10g

S.aureusAbsent/10g