Epinastine Impurity 49 CAS 2831006-70-1
| CAS No. | 2831006-70-1 |
| Molecular Formula | C15H13NO |
| Molecular Weight | 223.27 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C15H13NO, Epinastine Impurity 49 contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 223.27 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).
Epinastine Impurity 49 (CAS 2831006-70-1) is a certified pharmaceutical impurity reference standard with the molecular formula C15H13NO and a molecular weight of 223.27 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C15H13NO |
| Molecular Weight | 223.27 g/mol |
| Purity | ≥95% |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2003 |
| Nitrogen Atoms | 1 |
Related Epinastine Standards
- Epinastine Impurity N6 (CAS 339163-80-3)
- Epinastine Impurity 10 (CAS 41218-84-2)
- Epinastine Impurity 16 (CAS 1557-50-2)
- Epinastine Impurity 51 (CAS CATO-C4X-184051)
- Epinastine Impurity 8 (CAS 58821-75-3)
- Epinastine Impurity 12 (CAS 80012-69-7)
- Epinastine Impurity 19 (CAS 5840-40-4)
- Epinastine Impurity 15 (CAS CATO-C4X-184015)
Recommended Standards
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- Omeprazole Impurity 36 (CAS CATO-C4X-125536)
- Metronidazole Impurity N30 (CAS 56910-52-2)
- Irbesartan impurity 36 (CAS 17193-28-1)
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- 1-((5-Isobutyloxazol-4-yl)methyl)piperidin-4-amine dihydrochloride (CAS 2140316-60-3)
- (1,2,3,4,5,6-Hexahydro-[2,3]bipyridinyl-5-yl)-dimethyl-amine dihydrochloride (CAS 1361116-05-3)
- 2-(2-Methyl-1-(4-(methylsulfonyl)benzyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)acetic acid (CAS 872365-16-7)
- 2-(Propan-2-yl)-1h-imidazole-4-carbaldehyde (CAS 120556-21-0)
- Semaglutide impurity 195 (CAS CATO-C4X-2226195)
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