Active ingredientGlutathioneCat. No. P-G049-001CAS 70-18-8
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Pharmacopoeial impurity · Glutathione family
Pharmaceutical analytical standardGlutathione EP Impurity C
Synonyms: Glutathione Disulfide Impurity, Glutathione Disulfide, GSSG, Glutathione disulphide, Oxigluthione, Glutathone disulfide, Oxiglutationa, Oxiglutationum, Bis(gamma-glutamyl-L-cysteinylglycine) disulfide, Disulfide, Glutathione, Oxiglutatione, Glutathione-ssg, Bi(glutathion-S-yl), N-(N-gamma-Glutamyl-cysteinyl)glycine-(2,2)-disulfide, Glutathione oxidized form, Glutamine, N,N'-(dithiobis(1-((carboxymethyl)carbamoyl)ethylene))di-, L-, Glycine, L-gamma-glutamyl-L-cysteinyl-, (2,2')-disulfide, Glutathione ox, N,N'-(Dithiobis((R)-1-((carboxymethyl)carbamoyl)ethylene))di-L-glutamine, L(-)-Glutathione, L-Glutathione Oxidised, Glutathione-S-S-glutathione, Navstel, ox. glutathione, Oxidised glutathione, Sleep-promoting factor B, Oxiglutatione (JAN/INN), L(-)-Glutathione(oxidised form), L-gamma-glutamyl-L-cysteinyl-glycine disulfide, Glycine, L-gamma-glutamyl-L-cysteinyl-, bimol. (2.fwdarw.2')-disulfide
- Cat. No.
- P-G049-005
- CAS
- 27025-41-8
- Alternative CAS
- 103239-24-3 (sodium salt)
- 1345005-80-2 (hydrate)
- 121-24-4 (alternative CAS, same compound)
- 1086-40-4 (alternative CAS, same compound)
- Formula
- C20H32N6O12S2
- Molecular weight
- 612.63 g/mol
- Category
- Pharmacopoeial impurity (EP/USP)
Family: Glutathione
A small peptide made of three amino acids (glutamate, cysteine and glycine), the main antioxidant produced by our cells: it neutralises free radicals and helps the liver make many toxic substances easier to eliminate.
Did you know?It was first noticed in 1888 in yeast by the Frenchman de Rey-Pailhade, who called it 'philothion', meaning 'lover of sulphur'; the name glutathione is due to Frederick Gowland Hopkins, in 1921.
The two levels compared
| Level 1 Mass balance | Level 2 Mass balance + qNMR | |
|---|---|---|
| Identity (IR, MS, 1H and 13C-NMR; peptides: ESI-MS, MALDI-TOF and IR) | ✓ | ✓ |
| HPLC purity (min. 95%) | ✓ | ✓ |
| Content by mass balance (min. 90%; peptides: for information only)* | ✓ | ✓ |
| Content verified by qNMR (small molecules only) | · | ✓ |
| Suitable to qualify it as an in-house primary standard (ICH Q7) | · | ✓ |
* Mass balance is performed on every molecule. The only exceptions are cases where the chemistry of the molecule prevents it, for example oils and highly volatile substances, on which some of the required measurements cannot be made: in those cases the CoA states how the content was assigned.
What you receive
The analytical standard
Shipped under controlled temperature when the molecule requires it.
Certificate of analysis (CoA)
For every lot: identity, purity and assay, with the supporting spectra and chromatograms.
Safety data sheet (SDS)
Sent with every order.
Tracked shipment
Follow your shipment live, from our warehouse to your lab.
More products in the Glutathione family
Active ingredientGlutathioneCat. No. P-G049-001CAS 70-18-8
Active ingredientGlutathione Sodium SaltCat. No. P-G049-002CAS 34212-83-4
Pharmacopoeial impurityGlutathione EP Impurity ACat. No. P-G049-003CAS 19246-18-5
Pharmacopoeial impurityGlutathione EP Impurity A HydrochlorideCat. No. P-G049-004CAS 2601-47-0
Pharmacopoeial impurityGlutathione EP Impurity DCat. No. P-G049-006CAS 636-58-8
Pharmacopoeial impurityGlutathione EP Impurity D TrifluoroacetateCat. No. P-G049-007CAS 283159-88-6
Isotopically labelledGlutathione EP Impurity D-15N-d3Cat. No. P-G049-009
Isotopically labelledGlutathione-(Glycine-13C2-15N) TrifluoroacetateCat. No. P-G049-010Frequently asked questions
Is mass balance always performed?
Yes, on every molecule. The only exceptions are cases where the chemistry of the molecule prevents it: for example oils and highly volatile substances, on which some measurements (such as thermogravimetry) cannot be made. In those cases the CoA states which method was used to assign the content.
Can I ask for a different quantity?
Yes. The quantities are only suggestions: choose "Other" and enter the milligrams or grams you need.
Which level should I choose?
Level 1 is enough for most routine testing. Level 2 adds an independent qNMR content value and is meant for labs that need to qualify an in-house primary standard. For peptides and similar molecules, Level 2 is not available.
When will I get the quote?
Within 24 working hours, with price, availability and delivery time.
Need a molecule you cannot find?
Custom synthesis of impurities, metabolites and labelled compounds, with the same characterisation level.