P-Xylene CAS 106-42-3

Purity >95%In StockPharmaceutical Standards
CAS No.106-42-3
Molecular FormulaC8H10
Molecular Weight106.17 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

P-Xylene CAS 106-42-3 chemical structure

Description

The occurrence of P-Xylene is closely related to an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

P-Xylene (CAS 106-42-3) is a high-purity analytical reference standard with the molecular formula C8H10 and a molecular weight of 106.17 g/mol.

Based on its molecular formula C8H10, P-Xylene contains an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 106.17 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 FormulaC8H10
Molecular Weight106.17 g/mol
Purity>95%
StorageStore at 2-8°C
Solubility (reference)Soluble in methanol, acetonitrile, DMSO
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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