Lemborexant impurity 2 CAS 1547757-91-4

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.1547757-91-4
Molecular FormulaC9H16N2O
Molecular Weight168.24 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Lemborexant impurity 2 CAS 1547757-91-4 chemical structure

Description

Structurally, Lemborexant impurity 2 (C9H16N2O) contains an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 168.24 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

Lemborexant impurity 2 (CAS 1547757-91-4) is a certified pharmaceutical impurity reference standard with the molecular formula C9H16N2O and a molecular weight of 168.24 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.

As a certified reference material (CRM), Lemborexant impurity 2 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 FormulaC9H16N2O
Molecular Weight168.24 g/mol
AppearanceWhite to pale yellow crystalline powder. (faint amine-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1992
Nitrogen Atoms2

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