Rebamipide impurity 28 CAS CATO-C4X-152328
| CAS No. | CATO-C4X-152328 |
| Molecular Formula | C21H19ClN2O4 |
| Molecular Weight | 398.84 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Rebamipide impurity 28 (CAS CATO-C4X-152328, C21H19ClN2O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C21H19ClN2O4, Rebamipide impurity 28 contains a flavonoid 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 398.84 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.
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 Rebamipide impurity 28 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 | C21H19ClN2O4 |
| Molecular Weight | 398.84 g/mol |
| Appearance | Pale yellow to 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Rebamipide Standards
- Rebamipide impurity 15 (CAS CATO-C4X-152315)
- Rebamipide Impurity 52 (CAS CATO-C4X-152352)
- Rebamipide impurity 21 (CAS 452322-61-1)
- Rebamipide Impurity 29 (CAS CATO-C4X-152329)
- Rebamipide Impurity 7 (CAS 90098-08-1)
- Rebamipide impurity 18 (CAS CATO-C4X-152318)
- Rebamipide Impurity 6 (CAS 90098-38-7)
- Rebamipide-d4 (CAS 1219409-06-9)
Recommended Standards
- 2-{[[(anilinocarbonyl)oxy](methyl)amino]methylene}-5-(4-chlorophenyl)-1,3-cyclohexanedione 338399-51-2 KS-000033VT (CAS 338399-51-2)
- Lornoxicam Impurity 10 (CAS CATO-C4X-201610)
- N-(1-((3-chloro-4-methoxyphenyl)amino)-2-oxo-2-(p-tolyl)ethyl)furan-2-carboxamide (CAS 335421-10-8)
- Darolutamide (CAS 1297538-32-9)
- Solriamfetol Impurity 28 (CAS CATO-C4X-256328)
- Eltrombopag Impurity 65 (CAS CATO-C4X-119865)
- Promethazine lmpurity 31 (CAS 53309-35-6)
- (Z)-2-(But-1-en-1-yl)-6,6-dimethyl-6,7-dihydrobenzo[d]oxazol-4(5H)-one (CAS 833446-86-9)
- 5,7-Dimethylpyrrolo[2,1-f][1,2,4]triazin-4(1H)-one (CAS 310430-97-8)
- 2-Bromo-5-hydrazinylpyrazine (CAS 1001050-24-3)
- N-(2-Chloro-4-pyridinyl)benzamide (CAS 591754-12-0)
- N-Hydroxy-N'-phenylbenzimidamide (CAS 3488-57-1)
- Furo[3,2-c]pyridine-2-carboxylic Acid (CAS 112372-16-4)
- Semaglutide impurity 47 (CAS CATO-C4X-222647)
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