Atomoxetine Impurity 53 CAS CATO-C4X-155053
| CAS No. | CATO-C4X-155053 |
| Molecular Formula | C18H21NO2 |
| Molecular Weight | 283.36 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Atomoxetine Impurity 53 (C18H21NO2) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
Atomoxetine Impurity 53 (CAS CATO-C4X-155053) is a certified pharmaceutical impurity reference standard with the molecular formula C18H21NO2 and a molecular weight of 283.36 g/mol.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
As a certified reference material (CRM), Atomoxetine Impurity 53 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 | C18H21NO2 |
| Molecular Weight | 283.36 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| 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 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)
- Atomoxetine Impurity 36 (CAS 63765-72-0)
- Atomoxetine impurity 40 (CAS 1010818-92-4)
- Atomoxetine Impurity 49 (CAS CATO-C4X-155049)
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