1-(6-((2,5-Dimethylphenyl)thio)pyrimidin-4-yl)-N-(2-methoxyethyl)piperidine-4-carboxamide CAS 1251549-69-5

Purity 97%+In StockPharmaceutical Standards
CAS No.1251549-69-5
Molecular FormulaC21H28N4O2S
Molecular Weight400.54 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-(6-((2,5-Dimethylphenyl)thio)pyrimidin-4-yl)-N-(2-methoxyethyl)piperidine-4-carboxamide CAS 1251549-69-5 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1-(6-((2,5-Dimethylphenyl)thio)pyrimidin-4-yl)-N-(2-methoxyethyl)piperidine-4-carboxamide.

1-(6-((2,5-Dimethylphenyl)thio)pyrimidin-4-yl)-N-(2-methoxyethyl)piperidine-4-carboxamide (CAS 1251549-69-5), molecular formula C21H28N4O2S and molecular weight 400.54 g/mol, is a CATO reference standard with documented purity and traceability.

1-(6-((2,5-Dimethylphenyl)thio)pyrimidin-4-yl)-N-(2-methoxyethyl)piperidine-4-carboxamide (C21H28N4O2S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC21H28N4O2S
Molecular Weight400.54 g/mol
Purity97%+
StorageStore in a cool place (≤25°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)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1990
Nitrogen Atoms4
Sulfur Atoms1

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