Atomoxetine Impurity 26 CAS CATO-C4X-155026
| CAS No. | CATO-C4X-155026 |
| Molecular Formula | C19H23NO2 |
| Molecular Weight | 297.39 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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 supplies Atomoxetine Impurity 26 (CAS CATO-C4X-155026), a pharmacopoeial impurity reference standard (molecular formula C19H23NO2, MW 297.39 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, Atomoxetine Impurity 26 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 297.39 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a certified reference material (CRM), Atomoxetine 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 | C19H23NO2 |
| Molecular Weight | 297.39 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Atomoxetine Standards
- Atomoxetine Impurity 22 (CAS 881995-45-5)
- Atomoxetine Impurity 23 (CAS CATO-C4X-155023)
- Atomoxetine Impurity 36 (CAS 63765-72-0)
- Atomoxetine Impurity 29 (CAS CATO-C4X-155029)
- Atomoxetine Impurity 30 (CAS CATO-C4X-155030)
- Atomoxetine impurity 39 (CAS CATO-C4X-155039)
- Atomoxetine Impurity 44 (CAS CATO-C4X-155044)
- Atomoxetine Impurity 45 (CAS CATO-C4X-155045)
Recommended Standards
- Tranexamic Acid EP Impurity A (CAS 93940-19-3)
- Bisoprolol EP Impurity Q (CAS 1346604-00-9)
- Tranexamic Impurity 40 (CAS 2469781-80-2)
- Doxepin EP Impurity B (CAS 4504-88-5)
- Ranitidine Impurity 22 (CAS CATO-C4X-137022)
- Eldecalcitol Impurity 82 (CAS CATO-C4X-214082)
- Crisaborole Impurity 62 (CAS CATO-C4X-202162)
- 1-(Oxetan-3-yl)-1h-1,2,3-triazole-4-carbaldehyde (CAS 1707563-96-9)
- N2-Methylpyridine-2,4-diamine hydrochloride (CAS 1429056-38-1)
- (3-Aminopiperidin-1-yl)(3,5-dimethylisoxazol-4-yl)methanone (CAS 1249154-04-8)
- 2-(Cyclopropylmethyl)-5,6,7,8-tetrahydropyrido[4,3-c]pyridazin-3(2H)-one (CAS 1710195-27-9)
- 4-Phenyl-5-[3-(1H-pyrrol-1-yl)thiophen-2-yl]-4H-1,2,4-triazole-3-thiol (CAS 478062-79-2)
- 1-(1-Methoxycyclobutyl)propan-2-ol (CAS 1697854-33-3)
- Semaglutide impurity 109 (CAS CATO-C4X-2226109)
Why CATO?
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com