Lemborexant Impurity 38 CAS 1450904-98-9
| CAS No. | 1450904-98-9 |
| Molecular Formula | C11H10FNO |
| Molecular Weight | 191.20 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Lemborexant Impurity 38 (CAS 1450904-98-9), a pharmacopoeial impurity reference standard (molecular formula C11H10FNO, MW 191.20 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C11H10FNO, Lemborexant Impurity 38 contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 191.20 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).
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.
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 | C11H10FNO |
| Molecular Weight | 191.20 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Lemborexant Standards
- Lemborexant impurity 4 (CAS 528587-70-4)
- Lemborexant Impurity 53 (CAS CATO-C4X-304253)
- Lemborexant Impurity 61 (CAS 528587-69-1)
- Lemborexant Impurity 62 (CAS CATO-C4X-304262)
- Lemborexant Impurity 75 (CAS 2412536-16-2)
- Lemborexant Impurity 92 (CAS CATO-C4X-304292)
- Lemborexant Impurity 93 (CAS CATO-C4X-304293)
- Lemborexant impurity 3 (CAS 571189-49-6)
Recommended Standards
- Acetylcysteine impurity 66 (CAS 16708-09-1)
- OUL245 (CAS 1023814-45-0)
- Vonoprazan Fumarate Impurity 33 (CAS 881674-58-4)
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- Tofacitinib Impurity 15 (CAS 2459302-77-1)
- Lacosamide Impurity 5 (CAS CATO-C4X-18305)
- Methylprednisolone Impurity 81 (CAS 82332-00-1)
- 2-((3-Methylbenzyl)amino)butan-1-ol (CAS 1042623-01-7)
- (2R)-2-(1-Ethoxyethoxy)propan-1-ol (CAS 184110-41-6)
- 4-(4-Methylpiperazin-1-yl)picolinimidamide (CAS 1343783-65-2)
- 1,3-Dimethyl-5-(((tetrahydro-2H-pyran-2-yl)oxy)methyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (CAS 2450997-77-8)
- 2-(4-(Methoxymethoxy)-6-methylnaphthalen-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2773311-43-4)
- Phentolamine (CAS 50-60-2)
- (Tyr9)-Cholecystokinin Octapeptide (sulfated) (H-9770.0005) (CAS 96607-61-3)
Why CATO?
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