Tobramycin Impurity 15 CAS 207670-58-4
| CAS No. | 207670-58-4 |
| Molecular Formula | C24H30Cl2O7 |
| Molecular Weight | 501.40 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Tobramycin Impurity 15 is closely related to a flavonoid core, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Tobramycin Impurity 15 (CAS 207670-58-4) is a certified pharmaceutical impurity reference standard with the molecular formula C24H30Cl2O7 and a molecular weight of 501.40 g/mol.
Owing to a flavonoid core, a hydroxyl group, an ether linkage, chlorine substitution, Tobramycin Impurity 15 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 501.40 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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), Tobramycin Impurity 15 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 | C24H30Cl2O7 |
| Molecular Weight | 501.40 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2016 |
| Halogen Content | Cl-containing |
Related Tobramycin Standards
- Tobramycin Impurity 27 (CAS CATO-C4X-220027)
- Tobramycin Impurity 10 (CAS CATO-C4X-220010)
- Tobramycin Impurity 15 (CAS CATO-C4X-220016)
- Tobramycin Impurity 18 (CAS CATO-C4X-220018)
- Tobramycin Impurity 24 (CAS CATO-C4X-220024)
- Tobramycin Impurity N1 (CAS 51736-77-7)
- Tobramycin (CAS 32986-56-4)
- Tobramycin Impurity 3 (CAS CATO-C4X-22003)
Recommended Standards
- Sofosbuvir Impurity 94 (CAS CATO-C4X-105294)
- Carprofen Impurity 2 (CAS CATO-C4X-30342)
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- Calcipotriol Impurity 30 (CAS 115648-68-5)
- Cholecalciferol Impurity 15 (CAS 42607-12-5)
- Trelagliptin Impurity 68 (CAS CATO-C4X-104668)
- 3-Amino-5-(tert-butyl)benzoic acid (CAS 885518-35-4)
- 2-(3-Methylthiophen-2-yl)acetonitrile (CAS 1222097-66-6)
- n-Ethyl-4-methoxy-2-phenylbutan-1-amine (CAS 1488973-74-5)
- Ethyl 3-chloro-2-fluoro-6-(trifluoromethyl)benzoate (CAS 773135-49-2)
- 35423-91-7 N,N`-bis(1,4-DIMETHYLPENTYL)-p-PHENYLENEDIAMINE (CAS 35423-91-7)
- Diethyl 9H-fluoren-9-yl phosphate (CAS 34881-01-1)
- T-Peptide (CAS 2022956-62-1)
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