Flupirtine Impurity 4 CAS 1506942-35-3

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.1506942-35-3
Molecular FormulaC13H12FN3O2
Molecular Weight261.25 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Flupirtine Impurity 4 CAS 1506942-35-3 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 261.25 g/mol gives Flupirtine Impurity 4 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Flupirtine Impurity 4 (CAS 1506942-35-3) is a certified pharmaceutical impurity reference standard with the molecular formula C13H12FN3O2 and a molecular weight of 261.25 g/mol.

Structurally, Flupirtine Impurity 4 (C13H12FN3O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 261.25 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.

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.

CATO manufactures Flupirtine Impurity 4 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC13H12FN3O2
Molecular Weight261.25 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay 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)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1992
Halogen ContentF-containing
Nitrogen Atoms3

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