Linagliptin impurity 151 CAS CATO-C4X-1101151

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-1101151
Molecular FormulaC21H21N5
Molecular Weight343.42 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Linagliptin impurity 151 CAS CATO-C4X-1101151 chemical structure

Description

Linagliptin impurity 151 (CAS CATO-C4X-1101151) is a certified pharmaceutical impurity reference standard with the molecular formula C21H21N5 and a molecular weight of 343.42 g/mol.

Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, Linagliptin impurity 151 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 343.42 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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), Linagliptin impurity 151 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 FormulaC21H21N5
Molecular Weight343.42 g/mol
AppearancePale yellow to yellow crystalline powder
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)14.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Nitrogen Atoms5

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