5-tert-Butyl-m-xylene CAS 98-19-1

Purity >95%In StockPharmaceutical Standards
CAS No.98-19-1
Molecular FormulaC12H18
Molecular Weight162.27 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-tert-Butyl-m-xylene CAS 98-19-1 chemical structure

Description

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

5-tert-Butyl-m-xylene (CAS 98-19-1) is a high-purity analytical reference standard with the molecular formula C12H18 and a molecular weight of 162.27 g/mol.

The molecular framework of 5-tert-Butyl-m-xylene (C12H18) is characterized by an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).

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 FormulaC12H18
Molecular Weight162.27 g/mol
Purity>95%
StorageStore at 2-8°C
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957

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