Oxybuprocaine Impurity 13 CAS 2690342-18-6
| CAS No. | 2690342-18-6 |
| Molecular Formula | C17H26N2O5 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C17H26N2O5HCl, Oxybuprocaine Impurity 13 contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 374.86 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Oxybuprocaine Impurity 13 (CAS 2690342-18-6) is a certified pharmaceutical impurity reference standard with the molecular formula C17H26N2O5HCl and a molecular weight of 374.86 g/mol.
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), Oxybuprocaine Impurity 13 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 | C17H26N2O5 HCl |
| Molecular Weight | 374.86 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Oxybuprocaine Standards
- Oxybuprocaine Impurity 4 (CAS 1096863-52-3)
- Oxybuprocaine Impurity 2 (CAS 1309686-09-6)
- Oxybuprocaine EP Impurity B (CAS 23442-22-0)
- Oxybuprocaine Hydrochloride EP Impurity C (CAS 2374-03-0)
- Oxybuprocaine Hydrochloride (CAS 5987-82-6)
- Oxybuprocaine Impurity 6 (CAS 72101-53-2)
- Oxybuprocaine (CAS 99-43-4)
- Oxybuprocaine Impurity 1 (CAS CATO-C4X-12271)
Recommended Standards
- Cefmetazole Impurity 27 (CAS CATO-C4X-150727)
- Droperidol EP Impurity A (CAS 2147-83-3)
- Lenacapavir Impurity 11 (CAS CATO-C4X-324811)
- 5-Hydrazinyl-1,2,3-thiadiazole-4-carboxamide (CAS 163728-26-5)
- 6-(2-Hydroxyethyl)pyrimidin-2(1H)-one (CAS 174912-04-0)
- Ethyl 2-ethyl-5-iodobenzoate (CAS 1131587-30-8)
- Cyclopentyl (S)-2-amino-2-phenylacetate (CAS 205180-16-1)
- Rosuvastatin Impurity 92 (CAS CATO-C4X-116992)
- 2-(5-Cyclohexylthiophen-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1402166-55-5)
- Tirzepatide Impurity 37 (CAS CATO-C4X-324037)
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