1-Ethyl-2,4,5-trimethylbenzene CAS 17851-27-3

Purity 97%+In StockPharmaceutical Standards
CAS No.17851-27-3
Molecular FormulaC11H16
Molecular Weight148.24 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-Ethyl-2,4,5-trimethylbenzene CAS 17851-27-3 chemical structure

Description

1-Ethyl-2,4,5-trimethylbenzene (CAS 17851-27-3), molecular formula C11H16 and molecular weight 148.24 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C11H16, 1-Ethyl-2,4,5-trimethylbenzene contains an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 148.24 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.

As a certified reference material (CRM), 1-Ethyl-2,4,5-trimethylbenzene meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC11H16
Molecular Weight148.24 g/mol
Purity97%+
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.)1962

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