N-Nitroso Erythromycin EP Impurity B CAS CATO-C4X-100151
| CAS No. | CATO-C4X-100151 |
| Molecular Formula | C36H64N2O14 |
| Molecular Weight | 748.90 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of N-Nitroso Erythromycin EP Impurity B (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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
N-Nitroso Erythromycin EP Impurity B (CAS CATO-C4X-100151) is a certified pharmaceutical impurity reference standard with the molecular formula C36H64N2O14 and a molecular weight of 748.90 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 N-Nitroso Erythromycin EP Impurity B 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 | >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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related N Standards
- N-Nitroso Erythromycin impurity 57 (CAS CATO-C4X-100157)
- 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
- Shield 1 (CAS 914805-33-7)
- TRAP-6 (CAS 141136-83-6)
- Meropenem Impurity 22 (CAS CATO-C4X-130922)
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- Opicapone impurity 65 (CAS 64095-07-4)
- Choline impurity 2 (CAS CATO-C4X-15872)
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- 4,4,5,5-Tetramethyl-2-(7-methylnaphthalen-1-yl)-1,3,2-dioxaborolane (CAS 2304635-11-6)
- D-β-Asp15-Tirzepatide (CAS CATO-CPTD788930)
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