Rabeprazole Impurity 28 CAS 40828-54-4
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 40828-54-4 |
| Molecular Formula | C7H6N2O3S |
| Molecular Weight | 198.20 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Rabeprazole Impurity 28 (CAS 40828-54-4) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C7H6N2O3S. Molecular weight: 198.20 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C7H6N2O3S |
| Molecular Weight | 198.20 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| 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 |
| CAS Registry Year (est.) | 1968 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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- Rabeprazole Impurity 41 (CAS 117977-18-1)
- Rabeprazole Impurity 29 (CAS 1163685-31-1)
- Rabeprazole Impurity 35 (CAS 117977-20-5)
- Rabeprazole Impurity 40 (CAS 59886-90-7)
Recommended Standards
- N-methyl-5-nitroimidazo[2,1-b]thiazol-6-amine (CAS 339008-23-0)
- Dotinurad Impurity 67 (CAS 39884-80-5)
- Methyl isopropyl(phenyl)phosphinate (CAS 69423-58-1)
- Meropenem Impurity 46 (CAS CATO-C4X-130946)
- ent-Cefradine EP Impurity B (CAS 26108-29-2)
- 2-Hexyl-2-methyl-4-phenyl-1,3-dioxolane (CAS 55668-45-6)
- Ethyl 3-(3-methyl-N-propylbenzamido)propanoate (CAS 1901944-93-1)
- 3-(1H-Benzo[d]imidazol-2-yl)propanenitrile (CAS 51100-82-4)
- Tert-butyl (3R,4R)-4-(aminomethyl)-3-fluoropiperidine-1-carboxylate (CAS 1932103-83-7)
- Peptide YY (13-36) (canine, mouse, porcine, rat) (CAS 86895-09-2)
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 13829788188 / jacky.chen@cato-chem.com