Istradefylline Impurity 24 CAS 155270-98-7

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.155270-98-7
Molecular FormulaC19H22N4O4
Molecular Weight370.40 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Istradefylline Impurity 24 CAS 155270-98-7 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 370.40 g/mol gives Istradefylline Impurity 24 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Istradefylline Impurity 24 (CAS 155270-98-7) is a certified pharmaceutical impurity reference standard with the molecular formula C19H22N4O4 and a molecular weight of 370.40 g/mol.

Structurally, Istradefylline Impurity 24 (C19H22N4O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 370.40 g/mol, it falls into the moderately-high-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.

This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.

CATO manufactures Istradefylline Impurity 24 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 FormulaC19H22N4O4
Molecular Weight370.40 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
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
Degree of Unsaturation (DBE)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2001
Nitrogen Atoms4

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