Esomeprazole Impurity 79 CAS 1080689-87-7
| CAS No. | 1080689-87-7 |
| Molecular Formula | C8H7N2O3S |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Esomeprazole Impurity 79 (C8H7N2O3SNa) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Esomeprazole Impurity 79 (CAS 1080689-87-7) is a certified pharmaceutical impurity reference standard with the molecular formula C8H7N2O3SNa and a molecular weight of 234.20 g/mol.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
CATO manufactures Esomeprazole Impurity 79 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H7N2O3S Na |
| Molecular Weight | 234.20 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Esomeprazole Standards
- Esomeprazole Impurity 70 (CAS 103876-98-8)
- Esomeprazole Impurity 71 (CAS 1076199-93-3)
- Esomeprazole Impurity 116 (CAS 109371-19-9)
- Esomeprazole Impurity 106 (CAS 110464-72-7)
- Esomeprazole Impurity 31 (CAS 1114596-75-6)
- EsoMeprazole (CAS 119141-88-7)
- Esomeprazole EP Impurity F (CAS 119141-89-8)
- Esomeprazole Impurity 74 (CAS 1346599-74-3)
Recommended Standards
- Haloperidol impurity 25 (CAS 150214-94-1)
- Diazepam Impurity 7 (CAS 28910-89-6)
- Posaconazole impurity 213 (CAS CATO-C4X-1208213)
- Pemafibrate Impurity 6 (CAS 907192-61-4)
- Indium(III) iodide (CAS 13510-35-5)
- Methyl 7-amino-3-cyano-2-(cyanomethyl)pyrazolo[1,5-a]pyrimidine-6-carboxylate (CAS 886361-35-9)
- 2-Bromo-3-chloromethyl-6-(trifluoromethyl)pyridine (CAS 1227584-26-0)
- (4-((5-(Trifluoromethyl)pyridin-2-yl)oxy)phenyl)methanol (CAS 1031929-04-0)
- tert-Butyl (1S,6S)-2,5-diazabicyclo[4.2.0]octane-2-carboxylate (CAS 2648861-36-1)
- Semaglutide Impurity 8 (CAS CATO-C4X-22268)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com