70-18-8 Glutathione C20H32N6O12S2
Test Items |
Specification |
Result |
Description |
A white crystalline powder |
A white crystalline powder |
Identification IR |
Similar with the reference spectrum |
Complies |
Optical Rotation |
-15.5°~-17.5° |
-16.5° |
Clearity and color of solution |
Clear and colourless |
Clear and colourless |
Heavy metals |
Not more than 10ppm |
Complies |
Arsenic |
Not more than 2ppm |
Complies |
Sulphates |
Not more than 300ppm |
Complies |
Ammonium |
Not more than 200ppm |
Complies |
Iron |
Not more than 10ppm |
Complies |
Loss on Drying |
Not more than 0.5% |
0.3% |
Residue on lgnition |
Not more than 0.1% |
0.04% |
Assay |
98.0% to 101.0% |
99.3% |
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