Tulathromycin A Impurity 4 CAS CATO-C4X-21075
| CAS No. | CATO-C4X-21075 |
| Molecular Formula | C49H85N3O14 |
| Molecular Weight | 940.21 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 940.21 g/mol gives Tulathromycin A Impurity 4 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Tulathromycin A Impurity 4 (CAS CATO-C4X-21075, C49H85N3O14) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Tulathromycin A Impurity 4 (C49H85N3O14) 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.
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 certified reference material (CRM), Tulathromycin A Impurity 4 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.
Physical & Chemical Properties
| Molecular Formula | C49H85N3O14 |
| Molecular Weight | 940.21 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
Related Tulathromycin Standards
- Tulathromycin A Impurity 6 Diformate (CAS 2051579-11-2 (free base))
- Tulathromycin A Impurity 8 (CAS 2051579-09-8)
- Tulathromycin A Impurity 2 (CAS CATO-C4X-21073)
- Tulathromycin A-d7 (CAS 2734920-62-6)
- Tulathromycin B (CAS 280755-12-6)
- Tulathromycin A (CAS 217500-96-4)
- Tulathromycin A Impurity 5 (CAS 2051579-12-3)
- Tulathromycin A Impurity 3 (CAS CATO-C4X-21074)
Recommended Standards
- [DAla4] Substance P (4-11) (CAS 81381-50-2)
- Fmoc-MMAE (CAS 474645-26-6)
- Josamycin Impurity 10 (CAS CATO-C4X-301510)
- 3-(5-Bromo-2-thienyl)-2,5-dihydro-2,5-bis(2-octyldodecyl)-6-(2-thienyl)pyrrolo[3,4-c]pyrrole-1,4-dione (CAS 1415922-89-2)
- Nizatidine EP Impurity C (CAS 102273-13-2)
- Rimegepant Impurity 103 (CAS CATO-C4X-2487103)
- Calcifediol Impurity 6 (CAS 63819-58-9)
- 2-(2-Bromophenyl)-5,5-dimethyl-1,3,2-dioxaborinane (CAS 884010-16-6)
- (R)-3-((4-methoxybenzyl)oxy)propane-1,2-diol (CAS 109786-74-5)
- 1-(4-(Benzyl(methyl)amino)piperidin-1-yl)-2-chloroethanone (CAS 1353962-89-6)
- 2-(6,7-Dihydro-5H-benzo[7]annulen-9-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2126819-58-5)
- 1-Chloro-2,5-difluoro-4-nitrobenzene (CAS 578-28-9)
- (4-phenyl-1h-1,2,3-triaZol-5-yl)methanol (CAS 876592-09-5)
- (DTyr27,36,DThr32)-Neuropeptide Y (27-36) (CAS 163887-48-7)
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