Ropivacaine Impurity 22 CAS CATO-C4X-175322
| CAS No. | CATO-C4X-175322 |
| Molecular Formula | C17H26N2O2 |
| Molecular Weight | 290.40 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C17H26N2O2, Ropivacaine Impurity 22 contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 290.40 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).
Ropivacaine Impurity 22 (CAS CATO-C4X-175322) is a certified pharmaceutical impurity reference standard with the molecular formula C17H26N2O2 and a molecular weight of 290.40 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.
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 | C17H26N2O2 |
| Molecular Weight | 290.40 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Ropivacaine Standards
- Ropivacaine Impurity 16 (CAS 1391053-59-0)
- Ropivacaine Impurity 21 (CAS CATO-C4X-175321)
- Ropivacaine-d7 (CAS 684647-62-9)
- Ropivacaine Impurity 25 (CAS CATO-C4X-175325)
- Ropivacaine Impurity 27 (CAS CATO-C4X-175327)
- Ropivacaine EP Impurity E(R-Isomer) (CAS 1050482-18-2)
- Ropivacaine Impurity 17 (CAS CATO-C4X-175317)
- Ropivacaine EP Impurity E (CAS 265120-58-9)
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