Tobramycin Impurity 3 CAS CATO-C4X-22003
| CAS No. | CATO-C4X-22003 |
| Molecular Formula | C23H36N2O7 |
| Molecular Weight | 452.54 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Tobramycin Impurity 3 (C23H36N2O7) is characterized by a flavonoid core, 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).
As a process- or degradation-related impurity, Tobramycin Impurity 3 (CAS CATO-C4X-22003, C23H36N2O7) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
CATO manufactures Tobramycin Impurity 3 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 | C23H36N2O7 |
| Molecular Weight | 452.54 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Tobramycin Standards
- Tobramycin Impurity 6 (CAS 63770-47-8)
- Tobramycin Impurity 23 (CAS 74501-86-3)
- Tobramycin Impurity 6 (CAS CATO-C4X-22006)
- Tobramycin (CAS 32986-56-4)
- Tobramycin Impurity 27 (CAS CATO-C4X-220027)
- Tobramycin Impurity 15 (CAS 207670-58-4)
- Tobramycin Impurity 10 (CAS CATO-C4X-220010)
- Tobramycin Impurity 15 (CAS CATO-C4X-220016)
Recommended Standards
- Iloperidone Impurity 7 (CAS CATO-C4X-16617)
- Kukoamine Impurity 6 (CAS CATO-C4X-22966)
- Ivabradine Impurity 28 (CAS CATO-C4X-111928)
- Daprodustat Impurity 30 (CAS CATO-C4X-240730)
- Tranilast Impurity 9 (CAS CATO-C4X-25299)
- Enzalutamide Impurity 30 (CAS 112704-79-7)
- Apremilast Impurity 113 (CAS CATO-C4X-1009113)
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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