N-Nitroso Erythromycin impurity 57 CAS CATO-C4X-100157
| CAS No. | CATO-C4X-100157 |
| Molecular Formula | C36H64N2O14 |
| Molecular Weight | 748.90 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
As a process- or degradation-related impurity, N-Nitroso Erythromycin impurity 57 (CAS CATO-C4X-100157, C36H64N2O14) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of N-Nitroso Erythromycin impurity 57 (C36H64N2O14) is characterized by a nitrogen-containing heterocyclic scaffold, an amide 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.
CATO manufactures N-Nitroso Erythromycin impurity 57 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 | C36H64N2O14 |
| Molecular Weight | 748.90 g/mol |
| Purity | 97%+ |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related N Standards
- N-Nitroso Erythromycin EP Impurity B (CAS CATO-C4X-100151)
- N-Nitroso Isavuconazonium (CAS CATO-C4X-123695)
- N-Nitroso Amoxicillin Impurity J Dimer (CAS CATO-C4X-114878)
- N-Nitroso-N-Desmethyl Clarithromycin (CAS CATO-C4X-100226)
- N-Nitroso Azithromycin Impurity 46 (CAS CATO-C4X-100346)
- N-Nitroso Azithromycin Impurity 48 (CAS CATO-C4X-100348)
- N-Nitroso Azithromycin Impurity 54 (CAS CATO-C4X-100354)
- N-Nitroso Amoxicillin Dimer Impurity 81 (CAS CATO-C4X-114881)
Recommended Standards
- Meropenem Impurity 22 (CAS CATO-C4X-130922)
- Shield 1 (CAS 914805-33-7)
- Meropenem Impurity 56 (CAS CATO-C4X-130956)
- TRAP-6 (CAS 141136-83-6)
- Cefprozil Impurity 31 (CAS CATO-C4X-149231)
- Donepezil Impurity 47 (CAS 36159-03-2)
- Brimonidine Impurity 25 (CAS 135306-57-9)
- 4-(2-Methoxyethoxy)-2-methylaniline hydrochloride (CAS 1185156-40-4)
- 2-(3-(Aminomethyl)piperidin-1-yl)-1-(piperidin-1-yl)ethan-1-one (CAS 1019379-61-3)
- 2-(2-(Difluoromethoxy)phenyl)propanoic acid (CAS 1250681-60-7)
- Dicapthon (CAS 2463-84-5)
- 3-Amino-N-(propan-2-yl)butanamide (CAS 1179165-39-9)
- 5,7-Dichloro-1H-indole-2-carboxylic acid (CAS 4792-71-6)
- Semaglutide impurity 203 (CAS CATO-C4X-2226203)
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