4-tert-Butylstyrene CAS 1746-23-2

Purity >90%In StockPharmaceutical Standards
CAS No.1746-23-2
Molecular FormulaC12H16
Molecular Weight160.26 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-tert-Butylstyrene CAS 1746-23-2 chemical structure

Description

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.

4-tert-Butylstyrene (CAS 1746-23-2), molecular formula C12H16 and molecular weight 160.26 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C12H16, 4-tert-Butylstyrene contains an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 160.26 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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 FormulaC12H16
Molecular Weight160.26 g/mol
Purity>90%
StorageStore at 2-8°C
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957

Recommended Standards

Why CATO?