Ropivacaine Impurity 19 CAS 1817657-89-8
| CAS No. | 1817657-89-8 |
| Molecular Formula | C12H18N2O2 |
| Molecular Weight | 222.28 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C12H18N2O2, Ropivacaine Impurity 19 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 222.28 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Ropivacaine Impurity 19 (CAS 1817657-89-8) is a certified pharmaceutical impurity reference standard with the molecular formula C12H18N2O2 and a molecular weight of 222.28 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.
CATO manufactures Ropivacaine Impurity 19 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H18N2O2 |
| Molecular Weight | 222.28 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Nitrogen Atoms | 2 |
Related Ropivacaine Standards
- Ropivacaine Impurity 24 (CAS 36588-46-2)
- Ropivacaine Impurity 23 (CAS 352637-51-5)
- Ropivacaine impurity 30 (CAS CATO-C4X-175330)
- Ropivacaine EP Impurity B (CAS 27262-40-4)
- Ropivacaine Impurity 20 (CAS CATO-C4X-175320)
- Ropivacaine Impurity 32 (CAS 99552-32-6)
- Ropivacaine Impurity 36 (CAS 780736-98-3)
- Ropivacaine Impurity 37 (CAS 1583238-33-8)
Recommended Standards
- Oxymetazoline Impurity 19 (CAS 1895424-66-4)
- Propofol Impurity 61 (CAS CATO-C4X-147361)
- Butylphthalide Impurity 48 (CAS 952413-01-3)
- Propofol Impurity 60 (CAS CATO-C4X-147360)
- Clofarabine Impurity 8 (CAS CATO-C4X-15938)
- Halometasone Impurity 9 (CAS CATO-C4X-14469)
- Megestrol Acetate EP Impurity B (CAS 3562-63-8)
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- 5,6-Dibromo-N-methyl-1h-indole-3-carboxamide (CAS 1424507-07-2)
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- 31642-90-7 3-Amino-4-morpholin-4-yl-benzamide DTXSID30357135 (CAS 31642-90-7)
- Semaglutide Impurity 185 (CAS CATO-C4X-2226185)
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