287204-45-9 TSO2IAD7WJ PD-180970 UNII-TSO2IAD7WJ PD-180790 Pyrido(2,3-d)pyrimidin-7(8H)-one, 6-(2,6-dichlorophenyl)-2-((4-fluoro-3-methylphenyl)amino)-8-methyl- CAS 287204-45-9

Purity 97%+In StockPharmaceutical Standards
CAS No.287204-45-9
Molecular FormulaC21H33Cl2FN4O
Molecular Weight447.42 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

287204-45-9 TSO2IAD7WJ PD-180970 UNII-TSO2IAD7WJ PD-180790 Pyrido(2,3-d)pyrimidin-7(8H)-one, 6-(2,6-dichlorophenyl)-2-((4-fluoro-3-methylphenyl)amino)-8-methyl- CAS 287204-45-9 chemical structure

Description

As a certified reference material (CRM), 287204-45-9 TSO2IAD7WJ PD-180970 UNII-TSO2IAD7WJ PD-180790 Pyrido(2,3-d)pyrimidin-7(8H)-one, 6-(2,6-dichlorophenyl)-2-((4-fluoro-3-methylphenyl)amino)-8-methyl- 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 287204-45-9 TSO2IAD7WJ PD-180970 UNII-TSO2IAD7WJ PD-180790 Pyrido(2,3-d)pyrimidin-7(8H)-one, 6-(2,6-dichlorophenyl)-2-((4-fluoro-3-methylphenyl)amino)-8-methyl- (CAS 287204-45-9), a certified reference material (molecular formula C21H33Cl2FN4O, MW 447.42 g/mol) for analytical method development and quality control.

The molecular framework of 287204-45-9 TSO2IAD7WJ PD-180970 UNII-TSO2IAD7WJ PD-180790 Pyrido(2,3-d)pyrimidin-7(8H)-one, 6-(2,6-dichlorophenyl)-2-((4-fluoro-3-methylphenyl)amino)-8-methyl- (C21H33Cl2FN4O) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

Physical & Chemical Properties

Molecular FormulaC21H33Cl2FN4O
Molecular Weight447.42 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
StorageStore at room temperature, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentF/Cl-containing
Nitrogen Atoms4

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