PHR1359

Glutathione

Pharmaceutical Secondary Standard; Certified Reference Material

• Synonym(s): L-Glutathione reduced, γ-L-Glutamyl-L-cysteinyl-glycine, GSH
• Linear Formula: H₂NCH(CO₂H)CH₂CH₂CONHCH(CH₂SH)CONHCH₂CO₂H
• CAS Number: 70-18-8
• Molecular Weight: 307.32
• Beilstein: 1729812
• EC Number: 200-725-4
• MDL number: MFCD00065939
• PubChem Substance ID: 329823339
• NACRES: NA.24

Properties

• grade: certified reference material; pharmaceutical secondary standard
• Quality Level: 300
• Agency: traceable to Ph. Eur. Y0000517; traceable to USP 1294820
• CofA: current certificate can be downloaded
• technique(s): HPLC: suitable; gas chromatography (GC): suitable
• mp: 192-195 °C (dec.) (lit.)
• application(s): pharmaceutical (small molecule)
• format: neat
• storage temp.: 2-30°C
• SMILES string: N[C@@H](CCC(=O)N[C@@H](CS)C(=O)NCC(O)=O)C(O)=O
• InChI: 1S/C10H17N3O6S/c11-5(10(18)19)1-2-7(14)13-6(4-20)9(17)12-3-8(15)16/h5-6,20H,1-4,11H2,(H,12,17)(H,13,14)(H,15,16)(H,18,19)/t5-,6-/m0/s1
• InChI key: RWSXRVCMGQZWBV-WDSKDSINSA-N

Description

Amino Acid Sequence

γ-Glu-Cys-Gly

General description

Glutathione (GSH) is the most important nonprotein thiol widely distributed in animal tissues, plants, and microorganisms. GSH is also a key determinant of redox signaling and protection against oxidative stress.
Pharmaceutical secondary standards for application in quality control, provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards.

Application

These Secondary Standards are qualified as Certified Reference Materials. These are suitable for use in several analytical applications including but not limited to pharma release testing, pharma method development for qualitative and quantitative analyses, food and beverage quality control testing, and other calibration requirements.

May be used at 5-10 mM to elute glutathione S-transferase (GST) from glutathione agarose.

Biochem/physiol Actions

Endogenous antioxidant that plays a major role in reducing reactive oxygen species formed during cellular metabolism and the respiratory burst. Glutathione-S-transferase catalyzes the formation of glutathione thioethers with xenobiotics, leukotrienes, and other molecules that have an electrophilic center. Glutathione also forms disulfide bonds with cysteine residues in proteins. Via these mechanisms, it can have the paradoxical effect of reducing the efficacy of anti-cancer agents.

Analysis Note

These secondary standards offer multi-traceability to the USP, EP (PhEur) and BP primary standards, where they are available.

Other Notes

This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis.

Footnote

To see an example of a Certificate of Analysis for this material enter LRAA7940 in the slot below. This is an example certificate only and may not be the lot that you receive.

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 2
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable