Lemborexant Impurity 55 CAS CATO-C4X-304255
| CAS No. | CATO-C4X-304255 |
| Molecular Formula | C11H10FKO3 |
| Molecular Weight | 248.29 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Lemborexant Impurity 55 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.
CATO supplies Lemborexant Impurity 55 (CAS CATO-C4X-304255), a pharmacopoeial impurity reference standard (molecular formula C11H10FKO3, MW 248.29 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Lemborexant Impurity 55 (C11H10FKO3) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 | C11H10FKO3 |
| Molecular Weight | 248.29 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 95% |
| 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) | 6.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
Related Lemborexant Standards
- Lemborexant Impurity 64 (CAS CATO-C4X-304264)
- Lemborexant Impurity 79 (CAS 2898442-70-9)
- Lemborexant Impurity 63 (CAS 1872428-94-8)
- Lemborexant Impurity 98 (CAS CATO-C4X-304298)
- Lemborexant Impurity 19 (CAS CATO-C4X-304220)
- Lemborexant Impurity 50 (CAS CATO-C4X-304250)
- Lemborexant impurity 01 (CAS 1369768-29-5)
- Lemborexant impurity 13 (CAS CATO-C4X-304213)
Recommended Standards
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- 3-Methyl-6-tosylpyridazine (CAS 1000576-70-4)
- Macitentan Impurity 21 (CAS CATO-C4X-117521)
- Resmetirom impurity 108 (CAS CATO-C4X-2912108)
- Sarpogrelate impurity 15 (CAS CATO-C4X-291315)
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- (4-chloro-2-cyanophenyl)methyl acetate (CAS 1432679-22-5)
- Istradefylline Impurity 16 (CAS CATO-C4X-106116)
- 8-Bromo-3,5-dichloroimidazo[1,2-c]pyrimidine (CAS 2414520-09-3)
- Benzyl 3-amino-3-methylpiperidine-1-carboxylate (CAS 174543-80-7)
- 6-Amino-3-chloromethyl-2-(trifluoromethyl)pyridine (CAS 1227595-56-3)
- Ephrin-A2-Selective YSA-Peptide (CAS 532441-10-4)
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