Lemborexant Impurity 65 CAS 3070371-35-3
| CAS No. | 3070371-35-3 |
| Molecular Formula | C11H11FO3 |
| Molecular Weight | 210.20 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Lemborexant Impurity 65 (CAS 3070371-35-3) is a certified pharmaceutical impurity reference standard with the molecular formula C11H11FO3 and a molecular weight of 210.20 g/mol.
Based on its molecular formula C11H11FO3, Lemborexant Impurity 65 contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 210.20 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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), Lemborexant Impurity 65 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 | C11H11FO3 |
| Molecular Weight | 210.20 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2005 |
| Halogen Content | F-containing |
Related Lemborexant Standards
- Lemborexant Impurity 66 (CAS 1450905-00-6)
- Lemborexant Impurity 95 (CAS 3070371-42-2)
- Lemborexant Impurity 96 (CAS CATO-C4X-304296)
- Lemborexant Impurity 97 (CAS CATO-C4X-304297)
- Lemborexant Impurity 68 (CAS CATO-C4X-304268)
- Lemborexant impurity 18 (CAS CATO-C4X-304218)
- Lemborexant impurity 1 (CAS 73781-88-1)
- Lemborexant Impurity 52 (CAS CATO-C4X-304252)
Recommended Standards
- Regadenoson Impurity 27 (CAS 89365-25-3)
- Nebivolol Impurity 63 (CAS CATO-C4X-196863)
- Nebivolol Impurity 62 (CAS CATO-C4X-196862)
- 4-hydroxy-2-mercapto-5-methyl-7H-pyrano[2,3-d]pyrimidin-7-one (CAS 100856-85-7)
- Montelukast EP Impurity F (CAS 937275-23-5)
- Dotinurad Impurity 20 (CAS CATO-C4X-249420)
- Fenofibrate EP Impurity C (CAS 217636-47-0)
- 6-Amino-3-methyl-4-(pyridin-3-yl)-2,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile (CAS 132813-99-1)
- N-Methyl-1,2,3,4-tetrahydroquinoline-4-carboxamide (CAS 131753-21-4)
- 3-Chloro-5-isopropylphenol (CAS 1243439-86-2)
- 2-Chloro-3-nitro-6-(trifluoromethyl)pyridine (CAS 117519-08-1)
- Trimethylsilyl Trifluoroacetate (CAS 400-53-3)
- 1-Ethyl-4-nitro-3-propyl-1H-pyrazole-5-carboxylicacidethylester (CAS 76434-33-8)
- Atrial Natriuretic Polypeptide (4-28), human (CAS 95896-08-5)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com