Clarithromycin EP Impurity J(Roxithromycin EP Impurity C) HCl CAS 145645-54-1
| CAS No. | 145645-54-1 |
| Molecular Formula | C37H68N2O13 |
| Molecular Weight | N/A |
| 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.
Clarithromycin EP Impurity J(Roxithromycin EP Impurity C) HCl (CAS 145645-54-1) is a certified pharmaceutical impurity reference standard with the molecular formula C37H68N2O13HCl and a molecular weight of 785.41 g/mol.
Based on its molecular formula C37H68N2O13HCl, Clarithromycin EP Impurity J(Roxithromycin EP Impurity C) HCl contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 785.41 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO manufactures Clarithromycin EP Impurity J(Roxithromycin EP Impurity C) HCl 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 | C37H68N2O13 HCl |
| Molecular Weight | 785.41 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Clarithromycin Standards
- Clarithromycin EP Impurity D (CAS 101666-68-6)
- Clarithromycin 9-Oxime (CAS 103450-87-9)
- Clarithromycin EP Impurity J(Roxithromycin EP Impurity C) (CAS 111321-02-9)
- Clarithromycin EP Impurity I (CAS 118058-74-5)
- Clarithromycin Impurity 20 (CAS 118074-07-0)
- Clarithromycin EP Impurity P (CAS 123967-58-8)
- Clarithromycin EP Impurity A (CAS 124412-58-4)
- Clarithromycin EP Impurity H (CAS 127140-69-6)
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- Semaglutide Impurity 151 xTFA (CAS CATO-C4X-2226151)
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