L-Glutathione china manufacture 98.0%min CAS NO.27025-41-8

Appearance

White or almost white, crystalline powder or colourless crystals  

Solubility

freely soluble in water, very slightly soluble in ethanol and in methylene chloride

Identification

S.O.R.：-15.5°～-17.5°

Infrared：Conforms to the Reference Spectrum

Appearance of solution

Clear And Colorless

Specific Optical Rotation

[α]D20：-15.5°～-17.5°

Related substances:

- Impurity A (L-cysteinylglycine) ≤0.5%

- Impurity B (Cysteine)≤0.5%

- Impurity C (L-glutathione oxidised)≤1.5%

- Impurity D(L-γ-glutamyl-L-cysteine)≤1.0%

- Total Impurities≤2.5%

Chlorides

≤200ppm

Sulphates

≤300ppm

Ammonium

≤200ppm

Iron

≤10ppm

Heavy Metals

≤10ppm

Loss on drying

≤0.5%

Sulfated ash

≤0.1%

Bacterial Endotoxin

＜0.1EU/mg

Assay

98.0~101.0%