Rabeprazole impurity 51 CAS CATO-C4X-112151
| CAS No. | CATO-C4X-112151 |
| Molecular Formula | C18H21N3O4S |
| Molecular Weight | 375.44 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Rabeprazole impurity 51 (CAS CATO-C4X-112151) is a certified pharmaceutical impurity reference standard with the molecular formula C18H21N3O4S and a molecular weight of 375.44 g/mol.
The molecular framework of Rabeprazole impurity 51 (C18H21N3O4S) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 Rabeprazole impurity 51 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 | C18H21N3O4S |
| Molecular Weight | 375.44 g/mol |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Rabeprazole Standards
- Rabeprazole EP Impurity A (CAS 117976-47-3)
- Rabeprazole EP Impurity D (CAS 924663-38-7)
- Rabeprazole EP Impurity A-D3 (CAS 1330261-33-0)
- Rabeprazole impurity 52 (CAS CATO-C4X-112152)
- Rabeprazole-d3 Sodium Salt (CAS CATO-C4X-112147)
- Rabeprazole-d4 (CAS 934295-48-4)
- Rabeprazole-d3 (CAS 934295-30-4)
- Rabeprazole impurity 46 (CAS CATO-C4X-112146)
Recommended Standards
- Febuxostat Impurity 64 (CAS 2375033-26-2)
- Omeprazole Impurity 33 (CAS CATO-C4X-125533)
- Esomeprazole impurity 141 (CAS CATO-C4X-1112141)
- Oseltamivir Impurity 165 (CAS CATO-C4X-1720165)
- Hydroxychloroquine impurity 65 (CAS CATO-C4X-183565)
- Dorzagliatin Impurity 12 (CAS CATO-C4X-344112)
- Finerenone Impurity 13 (CAS 1050477-45-6)
- 2-Methyl-6-oxohexahydropyrimidine-4-carboxylic acid (CAS 169755-65-1)
- Ethyl 2-(3-bromo-5-oxo-1,5-dihydro-4H-1,2,4-triazol-4-yl)propanoate (CAS 2702997-65-5)
- 2-(Pyridin-3-yl)thiazol-4-amine (CAS 123970-76-3)
- 6-((2R,4S,5R)-4-Hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-2,3-dihydroimidazo[1,2-c]pyrimidin-5(6H)-one (CAS 76495-80-2)
- Ethylene (CAS 51915-19-6)
- 2-(Pyridin-3-yl)-6-(trifluoromethyl)benzoic acid (CAS 1214381-12-0)
- Insulin Degludec Impurity 8 (CAS CATO-C4X-21578)
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