Ropivacaine Impurity 18 CAS CATO-C4X-175318
| CAS No. | CATO-C4X-175318 |
| Molecular Formula | C9H17NO2 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Ropivacaine Impurity 18 (C9H17NO2HCl) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 1.0, corresponding to approximately 1 ring(s) or double-bond equivalent(s). With a molecular weight of 207.70 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Ropivacaine Impurity 18 (CAS CATO-C4X-175318) is a certified pharmaceutical impurity reference standard with the molecular formula C9H17NO2HCl and a molecular weight of 207.70 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 18 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 | C9H17NO2 HCl |
| Molecular Weight | 207.70 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Ropivacaine Standards
- Ropivacaine EP Impurity E(R-Isomer) (CAS 1050482-18-2)
- Ropivacaine EP Impurity G HCI (CAS 112773-90-7)
- Ropivacaine-d7 Hydrochloride (CAS 1217667-10-1)
- Ropivacaine Hydrochloride Monohydrate (CAS 132112-35-7)
- Ropivacaine Impurity 9 (CAS 13388-86-8)
- Ropivacaine Impurity 16 (CAS 1391053-59-0)
- Ropivacaine Impurity 37 (CAS 1583238-33-8)
- Ropivacaine Impurity 34 (CAS 175888-75-2)
Recommended Standards
- Cefodizime Impurity 25 (CAS CATO-C4X-180625)
- Hydroquinone Impurity 2 (CAS 2419143-84-1)
- Pilocarpine EP Impurity A HCl (CAS 28958-85-2)
- 2-(4-Methanesulfonylphenyl)propanoic acid (CAS 1250933-90-4)
- 5,8-Difluoro-2H-benzo[d][1,3]oxazine-2,4(1H)-dione (CAS 1196157-32-0)
- 12-(Palmitoyloxy)octadecanoic acid (CAS 1997286-65-3)
- Cisatracurium EP Impurity I (CAS 1193104-81-2)
- 4-((4-Bromophenoxy)methyl)tetrahydro-2H-pyran-4-carboxylic acid (CAS 1387566-13-3)
- 5-Fluorofuran-2-boronic Acid (CAS 1344061-02-4)
- Peptide 435 (CAS CATO-CPTD788435)
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