Azithromycin impurity 60 CAS CATO-C4X-100360
| CAS No. | CATO-C4X-100360 |
| Molecular Formula | C37H70N2O14S |
| Molecular Weight | 799.02 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Azithromycin impurity 60 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
As a process- or degradation-related impurity, Azithromycin impurity 60 (CAS CATO-C4X-100360, C37H70N2O14S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Azithromycin impurity 60 (C37H70N2O14S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C37H70N2O14S |
| Molecular Weight | 799.02 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Azithromycin Standards
- Azithromycin Impurity 10 (CAS 217500-34-0)
- Azithromycin impurity 61 (CAS CATO-C4X-100361)
- Azithromycin Impurity 26 (CAS CATO-C4X-100326)
- Azithromycin Impurity 47 (CAS CATO-C4X-100347)
- Azithromycin Impurity P (CAS CATO-C4X-100352)
- Azithromycin Impurity 32 (CAS CATO-C4X-100332)
- Azithromycin Impurity 45 (CAS 2365312-75-8)
- Azithromycin impurity 58 (CAS CATO-C4X-100358)
Recommended Standards
- 10,10'-(5-(6-([1,1'-Biphenyl]-4-yl)-2-phenylpyrimidin-4-yl)-1,3-phenylene)bis(9,9-dimethyl-9,10-dihydroacridine) (CAS 1836192-40-5)
- Cholic Acid Impurity 87 (CAS CATO-C4X-116087)
- 3,7,11-Tris(diphenylamino)quinolino[3,2,1-de]acridine-5,9-dione (CAS 2759189-68-7)
- Iobitridol Impurity 12 (CAS CATO-C4X-317812)
- Iguratimod Impurity 10 (CAS 2401-24-3)
- Tiopronin Impurity 5 (CAS CATO-C4X-15165)
- Posaconazole lmpurity 177 (CAS CATO-C4X-1208177)
- (2-Hydroxy-3-methylphenyl)boronic acid (CAS 259209-22-8)
- Tert-butyl (1-(5-fluoro-2-methoxybenzyl)piperidin-4-yl)carbamate (CAS 1286274-91-6)
- 2-Fluoro-5-methyl-N-(pentan-2-yl)aniline (CAS 1039956-88-1)
- 2,5-Bis(trifluoromethyl)benzenethiol (CAS 1028328-58-6)
- 7-Methoxy-4-(pyridin-3-yl)-6-[2-(quinolin-2-yl)ethoxy]quinazoline (CAS 1006890-01-2)
- Quinoline-3-D (CAS 15793-82-5)
- Semaglutide Impurity 14(Discontinued,See CPTD788307 ) (CAS CATO-C4X-222614)
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