Glutathione Impurity 26 CAS CATO-C4X-118526
| CAS No. | CATO-C4X-118526 |
| Molecular Formula | C20H32N6O12S2 |
| Molecular Weight | 612.63 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
As a process- or degradation-related impurity, Glutathione Impurity 26 (CAS CATO-C4X-118526, C20H32N6O12S2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Glutathione Impurity 26 (C20H32N6O12S2) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 612.63 g/mol, it falls into the high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C20H32N6O12S2 |
| Molecular Weight | 612.63 g/mol |
| Purity | ≥95% |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 2 |
Related Glutathione Standards
- Glutathione Impurity 21 (CAS CATO-C4X-118521)
- Glutathione Impurity 25 (CAS CATO-C4X-118525)
- L-Glutathione Oxidized (CAS 27025-41-8)
- Glutathione Impurity 23 (CAS CATO-C4X-118523)
- Glutathione Impurity 14 (CAS CATO-C4X-118514)
- Glutathione Impurity 22 (CAS CATO-C4X-118522)
- Glutathione impurity 20 (CAS 70555-25-8)
- Glutathione Impurity 24 (CAS CATO-C4X-118524)
Recommended Standards
- (-)-(1S)-N,N'-(6,6'-Dimethoxy[1,1'-biphenyl]-2,2'-diyl)bis[P,P-diphenylphosphinous amide] (CAS 524001-80-7)
- Oxidized glutathione (CAS 121-24-4)
- Cefpiramide (CAS CATO-C4X-2307)
- L-α-Glutamyl-L-cysteinylglycine Glutathione (CAS 119290-90-3)
- Atogepant Impurity 62 (CAS CATO-C4X-328562)
- Etoricoxib Impurity 41 (CAS 60891-70-5)
- baloparatide Iso Asp10 impurity (CAS CATO-C4X-35041)
- 2-Ethyl-5-propylpyrazine (CAS 29461-08-3)
- tert-Butyl 3-(2-(methylsulfonyl)acetyl)piperidine-1-carboxylate (CAS 1232432-67-5)
- 1-(4-Acetyl-phenyl)-piperidine-4-carboxylic acid amide (CAS 250713-72-5)
- 1-Benzyl-2-(thiophen-2-yl)pyrrolidine (CAS 1239144-62-7)
- 5-Methoxy-4,7-phenanthroline (CAS 951-06-4)
- 5-Chloro-4-iodo-1-methyl-1H-pyrazole (CAS 2109554-73-4)
- Semaglutide impurity 23 (CAS CATO-C4X-222623)
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