1,5-Dihydro-2-imino-1-[2-(4-methoxyphenyl)ethyl]-10-methyl-5-oxo-N-(3-pyridinylmethyl)-2H-dipyrido[1,2-a:2′,3′-d]pyrimidine-3-carboxamide CAS 840498-67-1

Purity 97%+In StockPharmaceutical Standards
CAS No.840498-67-1
Molecular FormulaC28H26N6O3
Molecular Weight494.54 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1,5-Dihydro-2-imino-1-[2-(4-methoxyphenyl)ethyl]-10-methyl-5-oxo-N-(3-pyridinylmethyl)-2H-dipyrido[1,2-a:2′,3′-d]pyrimidine-3-carboxamide CAS 840498-67-1 chemical structure

Description

CATO supplies 1,5-Dihydro-2-imino-1-[2-(4-methoxyphenyl)ethyl]-10-methyl-5-oxo-N-(3-pyridinylmethyl)-2H-dipyrido[1,2-a:2′,3′-d]pyrimidine-3-carboxamide (CAS 840498-67-1), a certified reference material (molecular formula C28H26N6O3, MW 494.54 g/mol) for analytical method development and quality control.

The molecular framework of 1,5-Dihydro-2-imino-1-[2-(4-methoxyphenyl)ethyl]-10-methyl-5-oxo-N-(3-pyridinylmethyl)-2H-dipyrido[1,2-a:2′,3′-d]pyrimidine-3-carboxamide (C28H26N6O3) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage. 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. 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 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 FormulaC28H26N6O3
Molecular Weight494.54 g/mol
AppearancePale yellow to yellow crystalline powder
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)19.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987
Nitrogen Atoms6

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