Lemborexant Impurity 54 CAS CATO-C4X-304254
| CAS No. | CATO-C4X-304254 |
| Molecular Formula | C13H14N2O3S |
| Molecular Weight | 278.33 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Lemborexant Impurity 54 (CAS CATO-C4X-304254) is a certified pharmaceutical impurity reference standard with the molecular formula C13H14N2O3S and a molecular weight of 278.33 g/mol.
Based on its molecular formula C13H14N2O3S, Lemborexant Impurity 54 contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 278.33 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).
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.
Physical & Chemical Properties
| Molecular Formula | C13H14N2O3S |
| Molecular Weight | 278.33 g/mol |
| Purity | ≥95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Lemborexant Standards
- Lemborexant impurity 16 (CAS 1369768-30-8)
- Lemborexant Impurity 73 (CAS CATO-C4X-304273)
- Lemborexant Impurity 37 (CAS 1369767-26-9)
- Lemborexant Impurity 70 (CAS CATO-C4X-304270)
- Lemborexant Impurity N1 (CAS 1369767-24-7)
- Lemborexant Impurity 23 (CAS 3037659-15-4)
- Lemborexant Impurity 56 (CAS CATO-C4X-304256)
- Lemborexant Impurity 71 (CAS CATO-C4X-304271)
Recommended Standards
- Torasemide impurity 38 (CAS CATO-C4X-183638)
- Fezolinetant Impurity 33 (CAS CATO-C4X-327033)
- Orlistat impurity 41 (CAS 68659-61-0)
- Sulfamethazine (CAS 57-68-1)
- Baloxavir Impurity 23 (CAS CATO-C4X-210823)
- Terbutaline Impurity 55 (CAS 26153-38-8)
- Phenytoin EP Impurity D (CAS 5157-15-3)
- Methyl 3-(naphthalen-1-yl)propanoate (CAS 36060-99-8)
- 5-iodopyridine-2-carboxamide (CAS 41960-46-7)
- 5-Chloro-3-methyl-1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazole-4-carbaldehyde (CAS 1393576-03-8)
- tert-Butyl N2-((S)-4-(benzyloxy)-2-((tert-butoxycarbonyl)amino)-4-oxobutanoyl)-N6-((benzyloxy)carbonyl)-L-lysinate (CAS 174630-04-7)
- 3-(4-Aminophenyl)-2H-chromen-2-one (CAS 1218-54-8)
- 2-[[2-(Methacryloyloxy)ethyl]dimethylammonio]acetate (CAS 62723-61-9)
- Protein Kinase C (19-36) Peptide (CAS 113731-96-7)
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