Repaglinide Impurity 26 CAS 791812-92-5
| CAS No. | 791812-92-5 |
| Molecular Formula | C26H34N2O4 |
| Molecular Weight | 438.56 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C26H34N2O4, Repaglinide Impurity 26 contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 438.56 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
CATO supplies Repaglinide Impurity 26 (CAS 791812-92-5), a pharmacopoeial impurity reference standard (molecular formula C26H34N2O4, MW 438.56 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
As a certified reference material (CRM), Repaglinide Impurity 26 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C26H34N2O4 |
| Molecular Weight | 438.56 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | ≥95% |
| Storage | Store in a cool place (≤25°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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 2 |
Related Repaglinide Standards
- Repaglinide Impurity 18 (CAS CATO-C4X-118618)
- Repaglinide Impurity 20 (CAS CATO-C4X-118620)
- Repaglinide Impurity 23 (CAS 2519482-22-3)
- Repaglinide impurity 27 (CAS CATO-C4X-118627)
- Repaglinide impurity 28 (CAS CATO-C4X-118628)
- Repaglinide Impurity 22 (CAS CATO-C4X-118622)
- Repaglinide (CAS 135062-02-1)
- Repaglinide EP Impurity E (CAS 147852-26-4)
Recommended Standards
- Dronedarone Impurity 89 (CAS CATO-C4X-109289)
- (H-Cys-Val-OH)? (Disulfide bond) (CAS 21141-84-4)
- Dronedarone Impurity 40 (CAS CATO-C4X-109240)
- N-(2-(2-(Benzylamino)-2-oxoethyl)-2,6-dihydro-4H-thieno[3,4-c]pyrazol-3-yl)-2-(methylthio)benzamide (CAS 1105249-53-3)
- Cefixime Impurity 84 (CAS CATO-C4X-113984)
- Tildipirosin impurity 5 (CAS CATO-C4X-32765)
- Budesonide impurity 42 (CAS CATO-C4X-138942)
- 2-hydroxy-2-methylbut-3-enoic acid (CAS 31572-04-0)
- n-(Sec-butyl)-1-methylpyrrolidin-3-amine (CAS 1247144-71-3)
- 2-(4-Chloro-6-(difluoromethyl)-3-methoxypyridin-2-yl)acetic acid (CAS 1804665-09-5)
- 4-iodo-1-phenyl-1H-pyrazol-5-amine (CAS 1459215-43-0)
- 2-(Difluoromethyl)-5-fluoro-3-nitropyridine (CAS 1805005-58-6)
- 1-(2,2-Difluoroethyl)-4-iodo-3,5-dimethyl-1H-pyrazole (CAS 1354705-34-2)
- Tirzepatide Impurity 20 (CAS CATO-C4X-324020)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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