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Product Name

L-Glutathione Reduced

CAS Number

70-18-8

Molecular Formula

C₁₀H₁₇N₃O₆S

Molecular Weight

307.32

Inspection Standard

USP37

Test Items

Specification

Descriptions

Appearance

A white crystals or crystalline

Odor and Taste

Almost odorless and tast sour

Solubility

Soluble in water

Identification

Nihydrin Test

Positive

Lead acetate Test

Positive

Infrared Absorption

Corresponds

Optical Rotation

-15.5^o~17.5^o

Melting Points

About 185^oC

Assay

98.0%~101.0%

Inorganic

Impurities

Ammonium

Not more than 200ppm

Arsenic

Not more than 2ppm

Chlorides

Not more than 200ppm

Sulphates

Not more than 300ppm

Heavy Metals

Not more than 10ppm

Iron

Not more than 10ppm

Cadmium

Not more than 1ppm

Lead

Not more than 3ppm

Mercury

Not more than 1ppm

Residue on Ignition

Not more than 0.1%

Organic

Impurities

Total

Not more than 2.0%

GSSG

Not more than 1.5%

Clearity and color of solution

Clear and Colorless

Residual Solvents

Meet the requirement

Loss on Drying

Not more than 0.5%