商品详情

Item

Standard

Appearance

White powder

Specific rotation[α]20/D

(C=2 in H₂O)

-110 to -120°

State of solution

(Transmittance)

Not less than 95.0%

Heavy metal(Pb)

Not more than 20ppm

Arsenic(As2O3)

Not more than 2ppm

Other amino acids

Chromatographically not detectable

Loss on drying

Not more than 2.0%

Residue on ignition(sulfated)

Not more than 0.2%

Assay

98.0 to102.0%