1-Butyl-4,6-diphenylpyridin-2(1H)-one CAS 21916-52-9

Purity 97%+In StockPharmaceutical Standards
CAS No.21916-52-9
Molecular FormulaC21H21NO
Molecular Weight303.40 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-Butyl-4,6-diphenylpyridin-2(1H)-one CAS 21916-52-9 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-Butyl-4,6-diphenylpyridin-2(1H)-one.

1-Butyl-4,6-diphenylpyridin-2(1H)-one (CAS 21916-52-9), molecular formula C21H21NO and molecular weight 303.40 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C21H21NO, 1-Butyl-4,6-diphenylpyridin-2(1H)-one contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 303.40 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.

As a certified reference material (CRM), 1-Butyl-4,6-diphenylpyridin-2(1H)-one 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.

Physical & Chemical Properties

Molecular FormulaC21H21NO
Molecular Weight303.40 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1963
Nitrogen Atoms1

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Why CATO?