Lansoprazole Impurity 26 (5-Hydroxybenzimidazole) CAS 41292-65-3
| CAS No. | 41292-65-3 |
| Molecular Formula | C7H6N2O |
| Molecular Weight | 134.14 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Lansoprazole Impurity 26 (5-Hydroxybenzimidazole) 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.
As a process- or degradation-related impurity, Lansoprazole Impurity 26 (5-Hydroxybenzimidazole) (CAS 41292-65-3, C7H6N2O) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to an amide group, a hydroxyl group, an ether linkage, an aromatic ring system, Lansoprazole Impurity 26 (5-Hydroxybenzimidazole) is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 134.14 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
Physical & Chemical Properties
| Molecular Formula | C7H6N2O |
| Molecular Weight | 134.14 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Nitrogen Atoms | 2 |
Related Lansoprazole Standards
- Lansoprazole EP Impurity D (CAS 102976-62-5)
- Lansoprazole Impurity 10027-0322 (CAS 1551185-85-3)
- Lansoprazole Impurity 35 (CAS 1797131-12-4)
- Lansoprazole Impurity 19 (CAS 4377-43-9)
- Lansoprazole Impurity 23 (CAS 63071-09-0)
- Lansoprazole Impurity 44 (CAS 22710-07-2)
- Lansoprazole EP Impurity E (CAS 583-39-1)
- Lansoprazole Impurity 11 (CAS 1329838-16-5)
Recommended Standards
- Imidazo[1,5-a]pyridin-3(2H)-one (CAS 65173-13-9)
- N-(1-Methylpyrazin-2(1H)-ylidene)cyanamide (CAS 83412-74-2)
- Imidazo[1,2-b]pyridazin-8-amine (CAS 56477-92-0)
- pyrazolo[1,5-a]pyridin-3-ol (CAS 51118-68-4)
- Cinacalcet Impurity 48 (CAS 10420-89-0)
- Racecadotril Impurity 25 (CAS CATO-C4X-110625)
- Ertapenem impurity 46 (CAS CATO-C4X-163346)
- (E)-[(4-Methylphenyl)methoxy]({2-[(4-methylphenyl)sulfanyl]pyridin-3-yl}methylidene)amine (CAS 477885-93-1)
- 7-Bromo-4,4-difluoro-1,2,3,4-tetrahydroisoquinoline (CAS 1780338-53-5)
- Cefotaxime Impurity 21 (CAS CATO-C4X-120121)
- 1H-Indazol-3,6-diamine (CAS 871709-90-9)
- 3-Bromo-2-methylpyrazolo[1,5-d][1,2,4]triazin-7-ol (CAS 1215295-89-8)
- 3-Chloro-4-phenylpyrrolidine-2,5-dione (CAS 24291-63-2)
- Semaglutide Impurity 192 (CAS CATO-C4X-2226192)
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