标准

Infrared Absorptions

Meets the requirements

White crystals or crystalline powder

Meets the requirements

比旋光度 [α]_D²⁰

+26.9°to +27.9°

溶液的透过率

clear and colorless
not less than 98.0%

氯化物

not more than 0.020%

铵盐(NH₄⁺)

not more than 0.02%

硫酸盐 (SO₄^2- )

not more than 0.020%

铁盐(Fe)

not more than 10ppm

重金属 (Pb)

not more than 10ppm

砷盐 (As₂O₃)

not more than 1PPM

其它氨基酸

Chromatographically
not detectable

干燥失重

not more than 0.5%

灼烧残渣

not more than 0.10%

含量

99.0% to 101.0%

PH

10.5 to 12.05

热原

nonpyrogenic