Fluorescent Brightener KS-N CAS 5242-49-9

Purity >95%In StockPharmaceutical Standards
CAS No.5242-49-9
Molecular FormulaC29H20N2O2
Molecular Weight428.48 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Fluorescent Brightener KS-N CAS 5242-49-9 chemical structure

Description

The occurrence of Fluorescent Brightener KS-N is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies Fluorescent Brightener KS-N (CAS 5242-49-9), a certified reference material (molecular formula C29H20N2O2, MW 428.48 g/mol) for analytical method development and quality control.

Based on its molecular formula C29H20N2O2, Fluorescent Brightener KS-N 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 428.48 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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 FormulaC29H20N2O2
Molecular Weight428.48 g/mol
AppearancePale yellow to yellow crystalline powder
Purity>95%
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)21.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1958
Nitrogen Atoms2

Related Fluorescent Standards

Recommended Standards

Why CATO?