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Glutathione (GSH) is named Reduced glutathione or L-Glutathione Reduced, which is an important antioxidant in plants, animals, fungi, and some bacteria and archaea. It is a white crystalline powder.
It is a tripeptide with a gamma peptide linkage between the carboxyl group of the glutamate side chain and the amine group of cysteine, and the carboxyl group of cysteine is attached by normal peptide linkage to a glycine. Thiol groups are reducing agents, existing at a concentration around 5 mM in animal cells. Glutathione reduces disulfide bonds formed within cytoplasmic proteins to cysteines by serving as an electron donor. In the process, glutathione is converted to its oxidized form, glutathione disulfide (GSSG), also called L-glutathione.
| Name: | L-glutathione | Molecular Formula: | C10H17N3O6S |
| Cas No: | 70-18-8 | Grade: | Food Grade, Medical Grade |
| ITEM | SPECIFICATION | METHOD REFERENCE |
|---|---|---|
| Appearance | White crystalline powder | Visual |
| Ammonium | ≤200ppm | Glutathione USP monograph |
| Chloride | ≤200ppm | USP35<221> |
| Sulfate | ≤300ppm | USP35<221> |
| Iron | ≤10ppm | USP35<241> |
| Arsenic | ≤2ppm | USP35<211> |
| Heavy metals | ≤10ppm | USP35<231> Method I |
| Loss on drying (3h at 105 ℃) | ≤0.5% | USP35<731> |
| Residue on Ignition | ≤0.1% | USP35<281> |
| L-glutathione oxidized | ≤1.5% | Glutathione USP monograph |
| Total impurities | ≤2.0% | Glutathione USP monograph |
| Assay (dry basis) | 98.0% to 101.0% | Glutathione USP monograph |
