| CAS No. | 56161-78-5 |
| Molecular Formula | C17H21NO |
| Molecular Weight | 255.35 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 255.35 g/mol gives rac-Atomoxetine EP Impurity C distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies rac-Atomoxetine EP Impurity C (CAS 56161-78-5), a pharmacopoeial impurity reference standard (molecular formula C17H21NO, MW 255.35 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C17H21NO, rac-Atomoxetine EP Impurity C 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 255.35 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 manufactures rac-Atomoxetine EP Impurity C 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.
| Molecular Formula | C17H21NO |
| Molecular Weight | 255.35 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Nitrogen Atoms | 1 |