Tetracaine Impurity 22 CAS 794457-79-7
| CAS No. | 794457-79-7 |
| Molecular Formula | C11H16N2O2 |
| Molecular Weight | 208.26 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Tetracaine Impurity 22 (CAS 794457-79-7, C11H16N2O2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C11H16N2O2, Tetracaine Impurity 22 contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 208.26 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
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 | C11H16N2O2 |
| Molecular Weight | 208.26 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 2 |
Related Tetracaine Standards
- Tetracaine Impurity 7 (CAS 10012-47-2)
- Tetracaine EP Impurity C (CAS 71839-12-8)
- Tetracaine EP Impurity B-d9 (CAS 1309935-92-9)
- Tetracaine impurity 20 (CAS 1152620-27-3)
- Tetracaine Impurity 17 (CAS 1056627-94-1)
- Tetracaine Impurity 25 (CAS 512175-79-0)
- Tetracaine Impurity 5 (CAS 94-32-6)
- Tetracaine Impurity 13 (CAS 99-77-4)
Recommended Standards
- Trimebutine Impurity 22 (CAS CATO-C4X-185822)
- N-Nitroso Trimebutine Impurity 12 (CAS CATO-C4X-185812)
- Pimavanserin impurity 57 (CAS CATO-C4X-193857)
- Lacosamide Impurity 51 (CAS CATO-C4X-183051)
- Linezolid Impurity 87 (CAS 238418-75-2)
- Parecoxib Impurity 34 (CAS CATO-C4X-159134)
- Indacaterol Impurity 80 (CAS 869868-63-3)
- Sitagliptin Phosphate (CAS 654671-78-0)
- Dapsone (CAS 80-08-0)
- 3-Methylbenzo[f]quinoline (CAS 85-06-3)
- 2-(3,5-Difluorophenyl)-2-fluoroacetic acid (CAS 208259-38-5)
- 3-[(4-Methylbenzyl)sulfonyl]propanoic acid (CAS 702670-41-5)
- (S)-Benzyl 4-((tert-butyldimethylsilyl)oxy)-2-hydroxybutanoate (CAS 863000-09-3)
- Semaglutide Impurity 18 (CAS 1671100-14-3)
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