2,2''-Dimethyl-1,1':4',1''-terphenyl CAS 53092-64-1

Purity 97%+In StockPharmaceutical Standards
CAS No.53092-64-1
Molecular FormulaC20H18
Molecular Weight258.36 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2,2''-Dimethyl-1,1':4',1''-terphenyl CAS 53092-64-1 chemical structure

Description

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.

2,2''-Dimethyl-1,1':4',1''-terphenyl (CAS 53092-64-1), molecular formula C20H18 and molecular weight 258.36 g/mol, is a CATO reference standard with documented purity and traceability.

2,2''-Dimethyl-1,1':4',1''-terphenyl (C20H18) contains a polycyclic aromatic system. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.

Physical & Chemical Properties

Molecular FormulaC20H18
Molecular Weight258.36 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1972

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