Tobramycin Impurity 6 CAS CATO-C4X-22006
| CAS No. | CATO-C4X-22006 |
| Molecular Formula | C18H35N5O8 |
| Molecular Weight | 449.50 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C18H35N5O8, Tobramycin Impurity 6 contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 449.50 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies Tobramycin Impurity 6 (CAS CATO-C4X-22006), a pharmacopoeial impurity reference standard (molecular formula C18H35N5O8, MW 449.50 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C18H35N5O8 |
| Molecular Weight | 449.50 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 5 |
Related Tobramycin Standards
- Tobramycin Impurity 6 (CAS 63770-47-8)
- Tobramycin Impurity 23 (CAS 74501-86-3)
- Tobramycin Impurity 3 (CAS CATO-C4X-22003)
- 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
- Roxadustat Impurity 52 (CAS CATO-C4X-221352)
- Rosuvastatin Impurity 134 (CAS 1797419-58-9)
- Ensifentrine impurity 42 (CAS CATO-C4X-335342)
- Valsartan Impurity 113 (CAS CATO-C4X-1057113)
- Fondaparinux Sodium Impurity 14 (CAS CATO-C4X-205214)
- Baricitinib Impurity 55 (CAS CATO-C4X-226055)
- Fluticasone Impurity 81 (CAS CATO-C4X-165081)
- Benzofuran-3-ol (CAS 107637-99-0)
- Febantel Impurity 6 (CAS CATO-C4X-29065)
- Apixaban Impurity 149 (CAS CATO-C4X-1088149)
- N-([1,1'-Biphenyl]-2-yl)-6-oxo-1,6-dihydropyridazine-3-carboxamide (CAS 696635-66-2)
- N-(4-Amino-1,2,5-oxadiazol-3-yl)-2-bromoacetamide (CAS 497224-40-5)
- 4,4,5,5-Tetramethyl-2-pyren-1-yl-1,3,2-dioxaborolane (CAS 349666-24-6)
- Calcium-Like Peptide 3 (CAS 261969-05-5)
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